Nad did a brilliant guest lecture for our undergraduate HCI class at Lancaster on Monday. His slides and blog about the lecture are at Virtual Chaos. He touched on issues of democracy vs. authority of information, dynamic content vs. accessibility and of course increasing issues of privacy on social networking sites. He also had awesome slides to using loads of Flickr photos under creative commons … community content in action not just words! Of course also touched on Web3.0 and future convergence between emergent community phenomena and structured Semantic Web technologies.