Freebase users were just granted some more invitations to give away to "data fanatics". So if your a data fanatic (or any body with a decent reason for trying out Freebase), comment on the blog with your email and I may just give you one.
I have 3 Freebase invites that I don't know what to do with. If you are interested in Freebase and don't have an invite, comment on this post with the reason you would like an invite as well as an idea for a feature you would want in a web application focused on student (target audience: highschool) research. Unless a lot of people post comments, your chances of getting an invite are pretty high. They would be even higher if the feature you talk about (see above) is related to Freebase.
EDIT: If you don't have any ideas for web app features, thats okay. Any Freebase related idea will do.
UPDATE: Freebase keeps giving me more invites so I have twelve more to give away.
Thoughts, developments, and updates on web stuff—UI, social web design (especially as it applies to universities), Rails, and probably a lot more by Jeremy Olson, a student going to UNC Charlotte and working at Skookum.