What is web 2.0?

Web 2.0, a phrase coined by O'Reilly Media in 2004, refers to a perceived second-generation of Web based communities and hosted services — such as social networking sites, wikis and folksonomies — that facilitate collaboration and sharing between users. O'Reilly Media titled a series of conferences around the phrase, and it has since become widely adopted.


see this :


http://www.oreillynet.com/pub/a/oreilly/...





Though the term suggests a new version of the Web, it does not refer to an update to Internet or World Wide Web technical specifications, but to changes in the ways the platform is used. 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 the term is meaningful, since many of the technology components of "Web 2.0" have been present since the creation of the World Wide Web.

What is web 2.0?
Actually, the web site designers follow the general formats for websites. These are very useful for maintaining standards of our own websites. For that there are three formats available now. One of them is "web 2.0". The latest format is "Web 3.0". These format contains the rules and regulations to be applied in the websites. Otherwise it will not be treated as these format. That's it.