What does (Web 2.0) mean?

Web 2.0 is a term often applied to a perceived ongoing transition of the World Wide Web from a collection of websites to a full-fledged computing platform serving web applications to end users. Ultimately Web 2.0 services are expected to replace desktop computing applications for many purposes.

What does (Web 2.0) mean?
Web 2.0 is just a term for newer and more interactive web applications. Check out G-mail, google office, or the new yahoo mail, these are examples of Web 2.0 apps.
Reply:Actually, the above answers aren't really correct. Web 2.0, a phrase coined by O'Reilly Media in 200, refers to a supposed second generation of Internet-based services—such as social networking sites, wikis, communication tools, and folksonomies—that emphasize online collaboration and sharing among users.