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Web 2.0
"Web 2.0" refers to what is perceived as a second generation of web development and web design. It is characterized as facilitating communication, information sharing, interoperability, user-centered design and collaboration on the World Wide Web. It has led to the development and evolution of web-based communities, hosted services, and web applications. Examples include social-networking sites, video-sharing sites, wikis, blogs, mashups and folksonomies. The concept of "Web 2.0" began with a conference brainstorming session between O'Reilly and MediaLive International in 2004. In the initial brainstorming, they formulated their sense of Web 2.0 by examples: personal website is Web 1.0, while blog is Web 2.0; content management system is Web 1.0, while wiki is Web 2.0; publishing is Web 1.0, while participation is Web 2.0; etc (O'Reilly, 2005-a). Later, O'Reilly (2005-b) further defined Web 2.0 as the network as platform, spanning all connected devices; Web 2.0 applications are those that make the most of the intrinsic advantages of that platform: delivering software as a continually-updated service that gets better the more people use it, consuming and remixing data from multiple sources, including individual users, while providing their own data and services in a form that allows remixing by others, creating network effects through an "architecture of participation," and going beyond the page metaphor of Web 1.0 to deliver rich user experiences. One year after that, O'Reilly updated the definition: Web 2.0 is the business revolution in the computer industry caused by the move to the internet as platform, and an attempt to understand the rules for success on that new platform. Chief among those rules is this: Build applications that harness network effects to get better the more people use them. (O'Reilly, 2006).
References
O'Reilly, T. (2005). What Is Web 2.0. Retrieved 29 June, 2009, from http://oreilly.com/web2/archive/what-is-web-20.html
O'Reilly, T. (2005). Web 2.0: Compact Definition? Retrieved 29 June, 2009, from http://radar.oreilly.com/archives/2005/10/web-20-compact-definition.html
O'Reilly, T. (2006). Web 2.0 Compact Definition: Trying Again Retrieved 29 June, 2009, from http://radar.oreilly.com/2006/12/web-20-compact-definition-tryi.html
Links to Resources
Blogs
A blog is a set of personal commentaries on issues the author deems important. It contains text, images, and links to related information on other blogs, Web pages, and media. Readers can reply easily and thus participate in a discussion in which they share knowledge and reflect on the topic. Blogs promote open dialogue and encourage community building in which both the bloggers and commenters exchange opinions, ideas, and attitudes. Watch a video on Blogs: http://www.youtube.com/watch?v=NN2I1pWXjXI. Examples of Blogs service websites include: Blogger, WordPress, and Drupal.
Wikis
A wiki is a Web page and as such is accessible to anyone with a Web browser and an Internet connection. This is where the similarity to a traditional Web page ends, because a wiki allows readers to collaborate with others in writing it and adding, editing, and changing the Web page's contents at any time. Its ease of use makes a wiki an effective tool for collaborative authoring. Watch a video on Wikis: http://www.youtube.com/watch?v=-dnL00TdmLY
Social Bookmarking
Social Bookmarking is a Web-based service that displays shared lists of user-created Internet bookmarks. Instead of keeping long lists of "favorites" in their own browsers, people use these Web sites to organise, rank, and display their resources for others to see and use. They classify the content using tags based on folksonomies of community-acceptable keyword classifications. Watch a video on Social Bookmarking: http://www.youtube.com/watch?v=x66lV7GOcNU. Examples of social bookmarking include Del.icio.us, Backflip, and Furl.
Social Networking Services
Social Networking Services are building online communities of people who share interests and/or activities, or who are interested in exploring the interests and activities of others. Most social network services are web based and provide a variety of ways for users to interact, such as e-mail and instant messaging services. The main types of social networking services are those which contain category divisions (such as former school-year or classmates), means to connect with friends (usually with self-description pages) and a recommendation system linked to trust. Popular methods now combine many of these. Famous social networking sites include Facebook, MySpace, Twitter and LinkedIn. Watch a video on Social Networking Services: http://www.youtube.com/watch?v=6a_KF7TYKVc
RSS
RSS is a family of web feed formats used to publish frequently updated works—such as blog entries, news headlines, audio, and video—in a standardized format. An RSS document (which is called a "feed", "web feed", or "channel") includes full or summarized text, plus metadata such as publishing dates and authorship. Web feeds benefit publishers by letting them syndicate content automatically. They benefit readers who want to subscribe to timely updates from favored websites or to aggregate feeds from many sites into one place. RSS feeds can be read using software called an "RSS reader", "feed reader", or "aggregator", which can be web-based, desktop-based, or mobile-device-based. Watch a video on RSS: http://www.youtube.com/watch?v=0klgLsSxGsU
Podcast
Podcast is a way to distribute multimedia files such as music or speech over the Internet for playback on mobile devices and personal computers. The term podcast, a word created by combining Apple's iPod and broadcast, can mean both the content and the method of delivery. Podcasters' Web sites may offer direct download or streaming audio, and a podcast is distinguished by its ability to be downloaded automatically using software capable of reading RSS feeds. Watch a video on Podcast: http://www.youtube.com/watch?v=y-MSL42NV3c
Online Photo Sharing
Flickr is perhaps the best known of the free online photo management and sharing applications. Rather than sending photos from desktops and cell phones to friends and family using e-mail, people can post them at Flickr and invite people to view them in online albums or slideshows. They can add notes and tags to each photo, and their viewers can leave comments, notes, and tags as well. Tags are searchable so it's easier to find related photos later. Watch a video on Online Photo Sharing: http://www.youtube.com/watch?v=vPU4awtuTsk Other examples of Online Photo Sharing sites include Webshots and Photobucket.