Microformats: What They Are and How To Use Them

http://www.smashingmagazine.com/2007/05/04/microformats-what-they-are-and-how-to-use-them
"Web 2.0 has its positive and its negative sides. Apart from tremendous technological improvements, provided by Ajax, semantically organized content and the growing popularity of RSS-Feeds, the term “Web 2.0″ still hadn’t managed to assert itself as the renewed Web rather than a new revolutionary technology as it is mistakenly being called."