Best place to learn web 2.0?

[timmillwood]

I am a fairly good web developer in HTML, CSS, PHP etc all the old stuff, but want to lean the new Web 2.0 stuff like AJAX.

Anyone know any good tutorials?
or code sample code sites i can learn from?

[mnkeybsness]

Aside from the obvious debate that Web 2.0 is just an idea and AJAX really has nothing to do with it...

I jumped right into Yahoo UI (http://developer.yahoo.com/yui/) and the Scriptaculous (http://script.aculo.us) (Prototype (http://prototypejs.org)) Javascript frameworks/libraries.

[WildPalms]

If you seriously want to start adopting Web 2.0 ideals then use a framework like Ruby on Rails which has ajax and other concepts built in. It will get you on the OO trail very quickly.