1. Web 2.0 and Education: The newsletter wwwTools for Education devotes their current issue to this question. Several resources & links to help explain Web 2.0. The following commentary (in my #2) is from their newsletter.
2. "Tim O'Reilly's What Is Web 2.0? Design Patterns and Business Models for the Next Generation of Software (September 30, 2005) is a core document in the field, tracking the Web 2.0 concept back to a conference brainstorming session which juxtaposed Web 1.0 and Web 2.0 associations and identifiers to come up with a formulation of Web 2.0 as a set of principles and practices, most conveniently visualised and presented here as the now renowned Web 2.0 meme map. Seven principles characterising Web 2.0 practices are explored."