What is web 2.0?

I've been hearing about "web 2.0" lately.. including that yahoo answers is built on it. So just what is web 2.0?

What is web 2.0?
The term "Web 2.0" refers to what some people see as a second phase of development of the World Wide Web, including its architecture and its applications. As used by its proponents, the phrase refers to one or more of the following:





the transition of websites from isolated information silos to sources of content and functionality, thus becoming a computing platform serving web applications to end users


a social phenomenon referring to an approach to creating and distributing Web content itself, characterized by open communication, decentralization of authority, freedom to share and re-use, and "the market as a conversation"


a more organized and categorized content, with a far more developed deeplinking web architecture.


a shift in economic value of the web, up past a trillion dollars surpassing that of the dot com boom of the late 1990s.


However, a consensus on its exact meaning has not yet been reached.





for more info have a look at the official web site:


http://www.web2con.com/
Reply:Web 2.0 is just a more standardized version of the web centered around XML. Most notably, rather than old fashioned HTML, websites now use the more standardized XHTML with CSS. This will help pages to display more uniformly across different browsers.