Earlier this year, SEOmoz held the Web 2.0 awards with over 300 web 2.0 sites in 38 categories, and includes 21 interviews with the founders of the winning sites.
It’s an excellent resource to see what visuals are popular, what colours are popular and the methodologies used to create some of the more iconic “web 2.0” websites out there.
Link:
SEOmoz’s web2.0 awards