How to design for 2.0
Seen on the tubes - How to design for Web 2.0. Pay particular attention to points #8 and #10:
8-Glassy Surfaces. Maybe originally introduced by the Mac OS X Style. Most Web 2.0 logos and site designs use subtle 3D effects, sparingly, to enhance the qualitative feel of the design.
10-Reflections. I don’t know where the trends started, but Apple’s web site must have been one of the most influential, preceding their Aqua interface look & feel.
There. That about covers 2.0.