Amazon has just launched a new website called Askville.
“Askville is a place where you can ask any question on any topic and get real answers from real people. It’s a fun place to meet others with similar interests to you and a place where you can share what you know. You can learn something new everyday or help and meet others using your knowledge. It’s new, and best of all, it’s free!”
Lots of different categories with some good questions.