- Table View
- List View
Internet of Everything: The First EAI International Conference, IoECon 2022, Guimarães, Portugal, September 16-17, 2022, Proceedings (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering #458)
by Teresa Pereira John Impagliazzo Henrique SantosThis book constitutes the refereed post-conference proceedings of the EAI International Conference on Internet of Everything, IoECon 2022, which took place in Guimarães, Portugal in September 16-17 2022. IoECon 2022 presents IoE paradigms to their whole dimension, intelligently connecting devices, people, processes, data, and things. IoE is multi-disciplinary and offers an opportunity to explore the co-relations between different areas, techniques, and theories about a new cyber world.The 10 revised full papers were carefully reviewed and selected from 26 submissions. The papers focus on a complete ecosystem that digitally interconnects everything, including people-to-people, people-to-machines, and machines-to-machines.
Internet of Everything: Second EAI International Conference, IoECon 2023, Guimarães, Portugal, September 28-29, 2023, Proceedings (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering #551)
by Teresa Pereira John Impagliazzo Henrique Santos Juan ChenThis book constitutes the refereed post-conference proceedings of the Second International Conference on Internet of Everything, IoECon 2023, which took place in Guimarães, Portugal, in September 2023. IoECon 2023 presents IoT paradigms to their whole dimension, intelligently connecting devices, people, processes, data, and things. IoE is multi-disciplinary and offers an opportunity to explore the co-relations between different areas, techniques, and theories about a new cyber world. The 11 revised full papers were carefully reviewed and selected from 38 submissions. The papers focus on a complete ecosystem that digitally interconnects everything, including people-to-people, people to-machines, and machines-to-machines.
Internet of Energy Handbook
by Pawan Kumar Srete Nikolovski Z Y DongThe Internet of Energy (IoE), with the integration of advanced information and communication technologies (ICT), has led to a transformation of traditional networks to smart systems. Internet of Energy Handbook provides updated knowledge in the field of energy management with an Internet of Things (IoT) perspective. Features Explains the technological developments for energy management leading to a reduction in energy consumption through topics like smart energy systems, smart sensors, communication, techniques, and utilization Includes dedicated sections covering varied aspects related to renewable sources of energy, power distribution, and generation Incorporates energy efficiency, optimization, and sensor technologies Covers multidisciplinary aspects in computational intelligence and IoT Discusses building energy management aspects including temperature, humidity, the number of persons involved, and light intensity This handbook is aimed at graduate students, researchers, and professionals interested in power systems, IoT, smart grids, electrical engineering, and transmission.
Internet of Energy for Smart Cities: Machine Learning Models and Techniques
by Neeraj Kumar Gagangeet Singh Aujla Anish JindalMachine learning approaches has the capability to learn and adapt to the constantly evolving demands of large Internet-of-energy (IoE) network. The focus of this book is on using the machine learning approaches to present various solutions for IoE network in smart cities to solve various research gaps such as demand response management, resource management and effective utilization of the underlying ICT network. It provides in-depth knowledge to build the technical understanding for the reader to pursue various research problems in this field. Moreover, the example problems in smart cities and their solutions using machine learning are provided as relatable to the real-life scenarios. Aimed at Graduate Students, Researchers in Computer Science, Electrical Engineering, Telecommunication Engineering, Internet of Things, Machine Learning, Green computing, Smart Grid, this book: Covers all aspects of Internet of Energy (IoE) and smart cities including research problems and solutions. Points to the solutions provided by machine learning to optimize the grids within a smart city set-up. Discusses relevant IoE design principles and architecture. Helps to automate various services in smart cities for energy management. Includes case studies to show the effectiveness of the discussed schemes.
Internet of Behaviors (IoB)
by R. Dhaya R. KanthavelThis book is intended to survey the Internet of Behavior (IoB). The book begins with the benefits and potential pitfalls of IoB. Today, IoB has huge potential in every sector of the world. There are numerous applications for IoB which benefit users as well as the business market in order to enhance the user experience. In this book, the benefits of IoB and its negative constraints are discussed in detail. It is a high time that IoB is to take its crown and ruled the world. The work of IoB is critical in keeping our data secure because it can currently identify all humans who attempt to steal someone’s data. Moreover, the business uses of IoB are in high demand. By leveraging promising technical improvements and advances in machine learning algorithms, IoB enables capture, analysis, comprehension, and response for all types of human behavior in a technique that enables the tracking and interpretation of the behavior. IoB can be very useful wherever the behavior, preferences, interests, and location of people need to be examined. On the other hand, an analytical study on consumers’ social and behavioral psychology and their influence on online purchasing is much needed. With the help of visualization tools such as Tableau and detailed reporting on selection patterns, the impact of social media on decision making and the relationship between personality and purchasing power in various age groups is found. The presented study lists major decision-making psychometric factors and highlights critical factors affecting online purchases. The role of IoB is to shape customer service through the use of artificial intelligence, cloud computing, data, smart analytics, machine learning, and other volatile technologies. The attractive components of this book are discussions of dynamic routing mechanisms to reduce energy consumption in software-defined networks; deep insight into Internet of Things (IoT) and IoB security and privacy concerns – applications and future challenges; sentiment analysis and feature reduction using an arboreal monkey compression algorithm with a deep modified neural network classifier; cybersecurity concerns for IoB; and identification of nutrients and microbial contamination in fruits and vegetables using a technology using the Internet of Behavior. There is no doubt that this book covers numerous interesting themes and details on the Internet of Behavior.
Internet of Augmented Me, I.AM: Empowering Innovation for a New Sustainable Future
by Patrick Duvaut Xavier Dalloz David Menga Francois Koehl Vidal Chriqui Joerg BrillI.AM catalyzes the “convergence for good” of the biological, physical and digital worlds, helping us to better tackle the toughest challenges of the 2020s: climate change, resource depletion, an aging population, social inclusion, the empowerment of people, health crises and the post-pandemic world, as well as new issues emerging in relation to economical, societal and everyday life. This book dives into disruptive concepts of I.AM such as: Trust as a Service, Business as a Game, ATAWAD (AnyTime, AnyWhere, Any Device), PCE (Productivity of Collaborative Exchange), Unimedia, Shazamization of everything, decentralization of everything, BOTization and Build to Order for Me, Blockchain and Empowerment of Me, edge computing, augmented industry, augmentation value chain and empowering innovation, etc. The fluid, easy-to-read style of this book targets the broadest scope of readers, from purpose-driven and business-oriented individuals, to students, researchers, experts, innovators, consultants, managers and politicians, all eager to empower people to work towards a more sustainable future.
Internet Newspapers: The Making of a Mainstream Medium (Routledge Communication Series)
by Xigen LiInternet Newspapers: The Making of a Mainstream Medium examines newspapers on the Internet, and addresses the emergence of online newspapers and the delivery of news through this outlet. Utilizing empirical research, chapters explore the theoretical and practical issues associated with Internet newspapers and examine the process through which online newspapers have grown into a mainstream medium. Contributions to this work emphasize three key areas: the structure and presentation of newspapers on the Internet; the medium as an interactive process; and the ways in which the public interacts with Internet newspapers.This collection makes a substantial contribution to the understanding of newspapers on the Internet, covering their development and changes as well as the impact that news delivery through this medium has had on other media, audiences, and society. It also sheds light on improving operation and performance of Internet newspapers to better serve the public and gain competitive knowledge. The volume encourages additional scholarship in this area, and also shows how researchers can benefit from an empirical approach to their examination of Internet newspapers.Internet Newspapers will appeal to scholars, researchers, and students of journalism and mass communications, and can be used as a supplementary text in advanced courses covering journalism, communication technology, and mass media and society.
Internet Networks: Wired, Wireless, and Optical Technologies (Devices, Circuits, and Systems)
by Krzysztof IniewskiIn the not too distant future, internet access will be dominated by wireless networks. With that, wireless edge using optical core next-generation networks will become as ubiquitous as traditional telephone networks. This means that telecom engineers, chip designers, and engineering students must prepare to meet the challenges and opportunities that the development and deployment of these technologies will bring. Bringing together cutting-edge coverage of wireless and optical networks in a single volume, Internet Networks Wired, Wireless, and Optical Technologies provides a concise yet complete introduction to these dynamic technologies. Filled with case studies, illustrations, and practical examples from industry, the text explains how wireless, wireline, and optical networks work together. It also: Covers WLAN, WPAN, wireless access, 3G/4G cellular, RF transmission Details optical networks involving long-haul and metropolitan networks, optical fiber, photonic devices, and VLSI chips Provides clear instruction on the application of wireless and optical networks Taking into account recent advances in storage, processing, sensors, displays, statistical data analyses, and autonomic systems, this reference provides forward thinking engineers and students with a realistic vision of how the continued evolution of the technologies that touch wireless communication will soon reshape markets and business models around the world.
Internet Multimedia Computing and Service: 9th International Conference, Icimcs 2017, Qingdao, China, August 23-25, 2017, Revised Selected Papers (Communications In Computer And Information Science #819)
by Benoit Huet Liqiang Nie Richang HongThis book constitutes the refereed proceedings of the 9th International Conference on Internet Multimedia Computing and Service, ICIMCS 2017, held in Qingdao, China, in August 2017. The 20 revised full papers and 28 revised short papers presented were carefully reviewed and selected from 103 submissions. The papers are organized in topical sections on multimedia information fusion, image processing and object recognition, machine learning and representation learning, multimedia retrieval, poster papers.
Internet-Modellierung mit Julia: Modelle, Algorithmen und Programme
by Ulrich HofmannDas Buch verbindet die Internetmodellierung mit der neuen Programmiersprache Julia. Die Eignung von Julia für die Modellierung sowohl etablierter Internet-Modelle als auch für forschungsnahe Themen wie die Car-to-Infrastructure-Kommunikation und von Black-Box-Modellen für Lastprognosen mit neuronalen Netzen wird vermittelt. Nach dem Studium des Buches und den Anregungen für weitere selbständige Analysen ist der Leser in der Lage, auch komplexere Modellierungsaufgaben in Forschung und Entwicklung mit Julia zu bearbeiten.
Internet Modeling with Julia: Models, Algorithms and Programs
by Ulrich HofmannThe book combines internet modeling with the new programming language Julia. It demonstrates Julia's suitability for modeling established internet models and research-oriented topics such as car-to-infrastructure communication and black-box models for load predictions with neural networks. After studying the book and gaining inspiration for further independent analyses, the reader will be able to tackle even more complex modeling tasks in research and development using Julia.
Internet Memes and Society: Social, Cultural, and Political Contexts (Routledge Advances in Internationalizing Media Studies)
by Anastasia BertazzoliThis book provides a solid, encompassing definition of Internet memes, exploring both the common features of memes around the globe and their particular regional traits. It identifies and explains the roles that these viral texts play in Internet communication: cultural, social and political implications; significance for self-representation and identity formation; promotion of alternative opinion or trending interpretation; and subversive and resistant power in relation to professional media, propaganda, and traditional and digital political campaigning. It also offers unique comparative case studies of Internet memes in Russia and the United States.
Internet Marketing with WordPress
by David MercerThe book's accompanying Interactive learning environment on siteprebuilder.com gives you an online place to enhance and extend your practical experience through exercises, consolidate your learning and theoretical knowledge with marked quizzes, interaction with your WordPress marketing community, and fun and exciting extras such as challenges and competitions. This book is for people already using WordPress, who want more visitors, better visitors, and to convert more of them into paying customers. No prior marketing experience is required, although a basic understanding of either hosted or self-hosted WordPress blogs is assumed.
Internet Marketing
by Matt BaileyProven, task-based approach to developing winning internet marketing campaignsIf you've been seeking a practical, day-by-day, do-it-yourself plan for success in your Internet marketing, this is the book for you. The latest in the very popular Hour a Day series, this book gives you step-by-step instruction and clear action plans for all crucial aspects of successful internet marketing: SEO, website optimization, integration of social media and blogs, and pay-per-click strategies. Above all, it shows you how to use analytics effectively, so you can track and understand your results, then course-correct as you need.Provides step-by-step instruction to help you design, implement, and measure an internet marketing strategyUses the empowering and winning approach that has made the books in the Hour a Day series top sellersBreaks down intimidating topics into approachable, hour-a-day tasksCovers key topics in step-by-step detail, including SEO, website optimization and usability, analytics, blog integration, social media, and pay-per-click strategiesOffers expert guidance from an experienced and well-known internet marketer, Matt BaileyDrive targeted traffic to your site, keep them there, and convert them into happy customers with this refreshingly practical, roll-up-your-sleeves guide!
Internet Literature in China (Global Chinese Culture)
by Michel HockxSince the 1990s, Chinese literary enthusiasts have explored new spaces for creative expression online, giving rise to a modern genre that has transformed Chinese culture and society. Ranging from the self-consciously avant-garde to the pornographic, web-based writing has introduced innovative forms, themes, and practices into Chinese literature and its aesthetic traditions. Conducting the first comprehensive survey in English of this phenomenon, Michel Hockx describes in detail the types of Chinese literature taking shape right now online and their novel aesthetic, political, and ideological challenges. Offering a unique portal into postsocialist Chinese culture, he presents a complex portrait of internet culture and control in China that avoids one-dimensional representations of oppression. The Chinese government still strictly regulates the publishing world, yet it is growing increasingly tolerant of internet literature and its publishing practices while still drawing a clear yet ever-shifting ideological bottom line. Hockx interviews online authors, publishers, and censors, capturing the convergence of mass media, creativity, censorship, and free speech that is upending traditional hierarchies and conventions within China—and across Asia.
The Internet (Kaleidoscope)
by Darcy LockmanProvides an explanation of the various parts and functions of the Internet.
The Internet Is Not What You Think It Is: A History, a Philosophy, a Warning
by Justin E. SmithAn original deep history of the internet that tells the story of the centuries-old utopian dreams behind it—and explains why they have died todayMany think of the internet as an unprecedented and overwhelmingly positive achievement of modern human technology. But is it? In The Internet Is Not What You Think It Is, Justin Smith offers an original deep history of the internet, from the ancient to the modern world—uncovering its surprising origins in nature and centuries-old dreams of radically improving human life by outsourcing thinking to machines and communicating across vast distances. Yet, despite the internet’s continuing potential, Smith argues, the utopian hopes behind it have finally died today, killed by the harsh realities of social media, the global information economy, and the attention-destroying nature of networked technology.Ranging over centuries of the history and philosophy of science and technology, Smith shows how the “internet” has been with us much longer than we usually think. He draws fascinating connections between internet user experience, artificial intelligence, the invention of the printing press, communication between trees, and the origins of computing in the machine-driven looms of the silk industry. At the same time, he reveals how the internet’s organic structure and development root it in the natural world in unexpected ways that challenge efforts to draw an easy line between technology and nature.Combining the sweep of intellectual history with the incisiveness of philosophy, The Internet Is Not What You Think It Is cuts through our daily digital lives to give a clear-sighted picture of what the internet is, where it came from, and where it might be taking us in the coming decades.
The Internet Is Not the Answer
by Andrew KeenSince its creation during the Cold War, the Internet, together with the Web, personal computers, tablets and smartphones, has ushered in one of the greatest shifts in society since the Industrial Revolution. The Digital Revolution has contributed to the world in many positive ways, but we are less aware of the Internet’s deeply negative effects.The Internet Is Not the Answer, by longtime Internet skeptic Andrew Keen, offers a comprehensive look at what the Internet is doing to our lives. The book traces the technological and economic history of the Internet, from its founding in the 1960s through the rise of big data companies to the increasing attempts to monetize almost every human activity. In this sharp, witty narrative, informed by the work of other writers, reporters, and academics, as well as his own research and interviews, Keen shows us the tech world, warts and all.Startling and important, The Internet Is Not the Answer is a big-picture look at what the Internet is doing to our society and an investigation of what we can do to try to make sure the decisions we are making about the reconfiguring of our world do not lead to unpleasant, unforeseen aftershocks.
The Internet Is for Cats: How Animal Images Shape Our Digital Lives
by Jessica MaddoxLOL cats. Grumpy Cat. Dog-rating Twitter. Pet Instagram accounts. It’s generally understood the internet is for pictures of cute cats (and dogs, and otters, and pandas). But what motivates people to make and share these images, and how do they relate to other online social practices? The Internet is for Cats examines how animal images are employed to create a lighter, more playful mood, uniting users within online spaces that can otherwise easily become fractious and toxic. Placing today’s pet videos, photos, and memes within a longer history of mediated animal images, communication scholar Jessica Maddox also considers the factors that make them unique. She explores the roles that animals play within online economies of cuteness and attention, as well as the ways that animal memes and videos respond to common experiences of life under neoliberalism. Conducting a rich digital ethnography, Maddox combines observations and textual analysis with extensive interviews of the people who create, post and share animal media, including TikTok influencers seeking to make their pets famous, activists tweeting about wildlife conservation, and Redditors upvoting every cute cat photo. The Internet is for Cats will leave you with a new appreciation for the human social practices behind the animal images you encounter online.
The Internet Is a Playground: Irreverent Correspondences of an Evil Online Genius
by David ThorneFeaturing all of Thorne's viral success, including "Missing Missy", The Internet Is a Playground culls together every article and e-mail from Thorne's wildly popular website 27bslash6.com, as well as enough new material, available only in these pages, to keep you laughing--and, indeed, crying--until Thorne's next stroke-of-genius prank. Or hilarious hoax. Or well-publicized almost-stint in jail (really).
Internet Internals: Vermittlungsschicht, Aufbau und Protokolle
by Peter MandlLernen Sie in diesem Buch alles über Vermittlungsschicht und Aufbau des Internets und die Übertragung von InformationenSie haben sich schon immer gefragt, wie das World Wide Web aufgebaut ist? Sie suchen eine Einführung in die „Internet Internals“? Dieses Buch über die Vermittlungsschicht des Internets gibt Ihnen Antworten. Es führt Sie in die Grundlagen der Übertragung von Daten im Netz ein und vermittelt Ihnen dabei einen Überblick über den Aufbau des Internets. Die große Stärke dieses Buchs über die Vermittlungsschicht des Internets liegt darin, dass es komplexe Sachverhalte wie Protokolle und Algorithmen im Detail beschreibt, dabei jedoch stets verständlich und übersichtlich bleibt.Die Inhalte von „Internet Internals“Autor Peter Mandl gewährt dem Leser einen möglichst tiefen wie breiten Einblick in die Kommunikationsstrukturen des World Wide Webs. Der Fokus des Buch über die Vermittlungsschicht im Internet liegt auf folgenden Themengebieten:• Aufbau des Internts• Internetprotokolle IPv4 und IPv6• Routing und Forwarding• Internet-Kommunikation• Konfigurations- und SteuerprotokolleMit all seiner Expertise ist Mandl dazu in der Lage, komplexe Sachverhalte des Internets einfach und verständlich darzulegen. Auch die zahlreiche Abbildungen helfen dabei, seine Ausführungen leicht nachzuvollziehen. Damit das Gelernte im Gedächtnis bleibt, finden Sie am Ende des Buchs Übungsaufgaben zu jedem Kapitel. Da die Lösungen direkt mitgeliefert werden, können Sie Nicht-Verstandenes noch einmal nachprüfen.
Internet Infrastructure: Networking, Web Services, and Cloud Computing
by Richard Fox Wei HaoInternet Infrastructure: Networking, Web Services, and Cloud Computing provides a comprehensive introduction to networks and the Internet from several perspectives: the underlying media, the protocols, the hardware, the servers, and their uses. The material in the text is divided into concept chapters that are followed up with case study chapters that examine how to install, configure, and secure a server that offers the given service discussed. The book covers in detail the Bind DNS name server, the Apache web server, and the Squid proxy server. It also provides background on those servers by discussing DNS, DHCP, HTTP, HTTPS, digital certificates and encryption, web caches, and the variety of protocols that support web caching. Introductory networking content, as well as advanced Internet content, is also included in chapters on networks, LANs and WANs, TCP/IP, TCP/IP tools, cloud computing, and an examination of the Amazon Cloud Service. Online resources include supplementary content that is available via the textbook’s companion website, as well useful resources for faculty and students alike, including: a complete lab manual; power point notes, for installing, configuring, securing and experimenting with many of the servers discussed in the text; power point notes; animation tutorials to illustrate some of the concepts; two appendices; and complete input/output listings for the example Amazon cloud operations covered in the book.
Internet Information Services (IIS) 7.0 Resource Kit
by Brett Hill Bernard Cheah Steve Schofield Kurt Meyer Microsoft Iis Team Olga M. Londer Carlos Aguiar Mares Mike VolordarskyGet the definitive reference for deploying, managing, and supporting Internet Information Services (IIS) 7.0. This official Microsoft® RESOURCE KIT provides comprehensive information and resources from Microsoft IIS Team experts who know the technology best. IIS, a service within the Windows Server® 2008 operating system, enables users to easily host and manage Web sites, create Web-based business applications, and extend file, print, media, and communication services to the Web. This RESOURCE KIT provides everything you need to know about IIS architecture, migrating servers and applications, capacity planning, performance monitoring, security features, top administration and troubleshooting scenarios, and IIS best practices. You also get an essential toolkit of resources on CD, including scripts, job aids, and a fully searchable eBook. A Note Regarding the CD or DVD The print version of this book ships with a CD or DVD. For those customers purchasing one of the digital formats in which this book is available, we are pleased to offer the CD/DVD content as a free download via O'Reilly Media's Digital Distribution services. To download this content, please visit O'Reilly's web site, search for the title of this book to find its catalog page, and click on the link below the cover image (Examples, Companion Content, or Practice Files). Note that while we provide as much of the media content as we are able via free download, we are sometimes limited by licensing restrictions. Please direct any questions or concerns to booktech@oreilly.com.
Internet Information Services (IIS) 7.0 Administrator's Pocket Consultant
by William R. StanekPortable and precise, this pocket-sized guide delivers immediate answers for the day-to-day administration of Web servers running Microsoft® Internet Information Services (IIS) 6.0. Zero in on core IIS support procedures and everyday tasks using quick-reference tables, step-by-step instructions, and lists. You get the focused, streamlined information you need to solve problems and get the job done--whether you're at your desk or in the field! Get fast facts to: Install Web and application server components Learn core techniques for managing IIS Configure Web sites, servers, and virtual directories Customize Web content, including error messages and redirection Manage Web applications, application pools, and Microsoft ASP.NET Configure SMTP, POP3, and advanced messaging options Implement security features--permissions, certificates, SSL Monitor and optimize IIS performance Manage IIS backups and metabase configurations
Internet Information Services (IIS) 6 Resource Kit
by Microsoft Iis TeamDeploy and support IIS 6.0, which is included with Microsoft Windows Server 2003, with expertise direct from the Microsoft IIS product team. This official RESOURCE KIT packs 1200+ pages of in-depth deployment, operations, and technical information, including step-by-step instructions for common administrative tasks. Get critical details and guidance on security enhancements, the new IIS 6.0 architecture, migration strategies, performance tuning, logging, and troubleshooting--along with timesaving tools, IIS 6.0 product documentation, and a searchable eBook on CD. You get all the resources you need to help maximize the security, reliability, manageability, and performance of your Web server--while reducing system administration costs. Get in-depth guidance--straight from the Microsoft IIS team on how to: Upgrade or migrate existing IIS solutions to IIS 6.0 Migrate Apache Web sites--migration tool included on CD Deploy Microsoft ASP.NET applications on IIS 6.0 Configure and manage IIS security services Manage the IIS 6.0 metabase using built-in GUI-based and command-line utilities Run IIS 6.0 as a platform for Web applications Streamline programmatic administration with the scripts and tools on CD Apply best practices for improving server availability and scalability, including managing large-scale deployments Optimize IIS performance with effective monitoring, tuning, and troubleshooting procedures Resource Kit tools plus Windows Server 2003 evaluation software inside Use IIS 6.0 Resource Kit tools to query log files, manage security features, run stress tests, migrate servers, troubleshoot problems, and more. The CD includes the following tools: Apache to IIS 6.0 Migration Tool CustomAuth IISCertDeploy.vbs IIS Host Helper Services IIS 6.0 Migration Tool IISState Log Parser Metabase Explorer Permissions Verifier RemapUrl SelfSSL TinyGet Web Capacity Analysis Tool WFetchCD also features: 180-day evaluation version of Windows Server 2003, Standard Edition IIS 6.0 Help system Windows Registry Reference Fully searchable eBook of this complete RESOURCE KIT A Note Regarding the CD or DVD The print version of this book ships with a CD or DVD. For those customers purchasing one of the digital formats in which this book is available, we are pleased to offer the CD/DVD content as a free download via O'Reilly Media's Digital Distribution services. To download this content, please visit O'Reilly's web site, search for the title of this book to find its catalog page, and click on the link below the cover image (Examples, Companion Content, or Practice Files). Note that while we provide as much of the media content as we are able via free download, we are sometimes limited by licensing restrictions. Please direct any questions or concerns to booktech@oreilly.com.