Hey all i'm currently working on a site where users can take quizzes on subject or add their own questions/subjects.

I'm wondering how to get started with terms and conditions for this. I want to keep it to a "don't post anything you shouldn't" kind of level.

Also as part of the sign up process i collect peoples email. Do i need a privacy policy, and what should this be?

The site is http://www.quizmash.com if you want to take a look at how it works.