You might be hearing too much talks regarding web 2.0 these days !! When I told about web 2.0 to one of my friend, he asked me what is Web 2.0 ? And just then, I thought, its good to collect and blog Web 2.0 information.
Definition:
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.
For more information on Web 2.0, see this..