The ToS that you're presented with upon signing up is pretty absurd. It requires you to commit to providing feedback "on a regular basis of not less than once each week during the Beta term", and to creating "a written evaluation of the functionality, performance, usability, and stability of the Beta Site and documentation provided."
It also prohibits you from linking to the site or disclosing any information about it, including the existence and contents of the ToS. Boy, I sure hope I don't get sued for posting this comment. /s