its the combination of different services like instant messaging,e-mail,social networking, and wikis.Google always gave these kind of user-friendly tools.
And again there is a new Google tool for datamining for analyzing and revealing your interests for marketing purposes. It's time that everybody wake up and complain companies such as Google, but especially Google, for such privacy intrusion behaviour. It's simply insane that a commercial company is in charge and rules the internet.
But wen i login Google wave it's says..! Your Google Account has not yet been activated for Google Wave. can any body tel.. Y my Account was not activated..?
You need to Google Wave invite to get access. Google Wave is under development. You can get an invite from friends or buy one on ebay.
I don't think its even a a beta level yet. Although it is open to developers. While I think its pretty cool with some nice features, I can't say I'm actually going to use it ever. To me it just came out way too late.