If you’re interested in the evolution of the web — and really; who isn’t? — check out the YouTube video posted by Layla on her Thread Bare Gypsy Soul blog.
If Web 2.0 can be characterized by the use of AJAX (the software architecture that lets you drag google maps around) and larger fonts then Web 3.0 is going to be the application as widget – not purchased but downloaded or obtained through your social network. Kind of like WordPress plugins, Yahoo Widgets or Google Gadgets – it’s the process of adding functionality not with full blown, store bought code but by assembling snippets of code to carry out very specific tasks. Functionality on demand, kinda cool.