Fluin: Like a cross between IM and a Forum For the full experience, try registering an account (literally takes 2 seconds, no email or activation required). You'll be able to create threads and vote on other threads. If you choose not to register, you can still post anonymously. http://fluin.com
You have a simple site to attract a lot of people. But keep some information in the home page of the sites which will help the first time visitors.