If you are a web-developer, i am sure you have already heard the word "web 2.0" being mentioned in several articles and (especially0 in new product released. So, what exactly is this web 2.0 ? Personally, i wasnt quite aware that the internet had a version number, assuming its the internet we are talking about ;-)
Anyway, here's a insightful article from O'Reilly, aptly titled " What Is Web 2.0".