Amazon’s Askville is the Perfect Example of Web 2.0
Askville launched recently and it is a beautiful site. It’s fun to ask and answer questions and you get rewards for doing all of it. A killer app is that you can buy superpowers with the coins you get from asking and answering questions. Addictive, easy to use, fun to use - all site content created by the users. This site should be the poster-child for web 2.0. Amazon seems to be hard at work improving it as well. This should be fun to watch.
Other than as a case study, I don’t know yet how this applies to web marketing, but it’s a great example of something being made out of nothing. This is what Google Answers would have been had they not lost their swagger.