WEB 3.0

Google CEO Eric Schmidt says that Web 2.0 is Ajax. If it's not Ajax, it's "just a marketing term". Schmidt says Web 3.0 will be applications which are pieced together - relatively small, the data is in the cloud, can run on any device (PC or mobile), very fast, very customizable, and distributed virally (social networks, email, etc).

But I don't agree with him, which is perhaps why I'm not Google CEO. On the other hand, I'm not defending a market position, so here's my version:
Web 1.0: Static content. You'll read what you're given and like it

Web 2.0: User generated content. We read and write

Web 3.0: Machine generated content. You can hear the faint echoes of web 3.0 hurtling towards you as you scan your web feeds as a river of news in Google Reader and the machine tells you things you didn't know you needed to know. Intelligent agents.

Web 4.0: There is no web 4.0. Near the end of the web 3.0 era, the asteroid collides and it's game over.