This article I have posted from www.AdAge.com should help you to understand what Web 2.0 is all about! This is very important information that you need to know if you want to succeed on the internet into the future...
Trying to Define Web 2.0
Web 1.0 Is So Last Year; Interaction, Multimedia Push Internet Forward - By BETH SNYDER BULIK
Published: July 10, 2006
YORK, Pa. (AdAge.com) -- Maybe the ultimate insult in the online world today is to be described as a Web 1.0 company. The so-called second wave of the internet revolution is all about Web 2.0. Sporting names such as Webaroo, Flickr, Trulia and Ning, the current crop of websites labeled Web 2.0 claim next-generation status.