Yahoo! Answers is a web community where you can ask questions and people who have knowledge about your specific question answer it. With over 90 million people visiting and sharing the knowledge, it is a lot of web traffic if you are able to make a mark in Yahoo Answers.
Collective Intelligence and Web Version 2.0 used to be known as behavioral targeted marketing. No more.
Michael Arrington's post on TechCrunch, "Squidoo: Seth Godin's Purple Albatross?" got me thinking and I must say I agree with some of Michael's points but I also disagree with some of his others.