Out of the Box Games is having a promotion for schools and clubs.
From their announcment:
Step 1: Enter your and your organization's information below before October 31st
Step 2: After November 1st, visit this site to vote for your school and tell others to vote for your school. Vote up to once per day.
Step 3: The organization that gets the most votes before December 1st wins $500 worth of games!