(pay attention to the mouse overs)
What is Web 2.0? We tend to throw the term around a lot, but can we actually define it? The designation 2.0 indicates an entirely new version, not just an incremental upgrade to the existing system. Wikipedia, itself often considered a Web 2.0 product, says that Web 2.0
"refers to a perceived second generation of web-based communities and hosted services — such as social-networking sites, wikis and folksonomies — which aim to facilitate collaboration and sharing between users. The term became popular following the first O'Reilly Media Web 2.0 conference in 2004. Although the term suggests a new version of the World Wide Web, it does not refer to an update to any technical specifications, but to changes in the ways software developers and end-users use the web. According to Tim O'Reilly, "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."
Some technology experts, notably Tim Berners-Lee, have questioned whether one can use the term in a meaningful way, since many of the technology components of "Web 2.0" have existed since the early days of the Web." (all links are from the original Wikipedia article)
Internet pundit Tim O'Reilly describes Web 2.0 in part as "
The Web as Platform,"--the Web page is actually an
application. Some of these applications, such as
Google Docs, which I am using to write my post right now, are clearly applications. By the way, the handy little rollovers you see when you mouse over the links on this post are created in Google Docs, which includes a word processor that can post directly to Blogger and other blog accounts. Other "Web 2.0" products include many of the social networking sites people use, MySpace, Facebook, Flickr, and many others. The intelligent ads,
Adsense developed by Google are also part of this transition. Many of these products rely on user created content, be it content a user physically creates or content that the user finds. Example of the latter would be
Digg and
Slashdot. One of the things that makes Web 2.0 intriguing to me, and others, is that so many of the technologies can be tied into each other. For example, I'm writing this in Google Docs, posting it to Blogger, and if I wanted to, I could embed the YouTube video clips I've linked to directly into my Blogger page.
The technology behind many of the technologies is Ajax, Asynchronous JavaScript + XML. Wikipedia's article on Ajax is worth reading over. If you are planning to work in new media, you've got to at least know what the term means and the basics of what's going on.
Several people have tried to put the ideas of Web 2.0 into short video. Michael Welsh, a professor at Kansas State University posted a short video early this year which tried to define the idea of
Web 2.0. You can also read a transcript of an
early version. He's not alone, here's
another short video, based in part on the Wikipedia article, describing Web 2.0.
Not surprisingly, there are podcasts that are geared specifically to Web 2.0 issues. The Web 2.0 Show discusses many of the Web 2.0 technologies and products, as well as providing interviews with a variety of people involved in the industry. Episode 1 includes an interview with the founder of Wordpress, a blogging tool/site, and a discussion of what Web 2.0 is. It's also an example of how to use a blog/Web site to support a podcast. Note the subscribe options on the page. You might also check out the Web 2.0 Summit podcasts on iTunes--no I don't expect you to listen to all of them, but it's worth listening to at least one (or part of one). While you are in iTunes, see what else you can find on technology and Web 2.0.
By the time you've finished reading this entry AND have gone through the links inside of it, you should be forming an opinion as to what Web 2.0 is. I'd like to hear your version of what Web 2.0 is, as well as find out what your favorite Web 2.0 products are. So, in the comments section, tell me what you think Web 2.0 is and what your favorite apps are.
Oh, and don't forget, at least one or two of you are supposed to be presenting a podcast series in class....