There is a powerful idea floating around that the internet is moving into a more advanced stage of maturity, a new paradigm called Web 2.0. There's also a lot of hype flying around the idea, as well as a backlash from internet folks who see Web 2.0 as nothing more than an attempt to cash in now that the big money is back in Internetland.
In this exploration of the many trends powering the new web paradigm, Tim Ziegler separates the progressive ideas from the hype and explores emerging patterns and ideas surrounding Web 2.0
Web 2.0: A Pattern Library