The Big G defines Web 3.0 via our friends at RRW:
Schmidt launched into a great definition of Web 3.0. He said that while Web 2.0 was based on Ajax, Web 3.0 will be “applications that are pieced together” – with the characteristics that the apps are relatively small, the data is in the cloud, the apps can run on any device (PC or mobile), the apps are very fast and very customizable, and are distributed virally (social networks, email, etc).
Looks like widgets are at it again. Yikes.
For more debate/definition/blah on Web 3.0: