Secular Student Alliance
Check this website if you're an atheist student who is looking for a suitable group to join at your school. Groups for atheists and other freethinkers have already been formed at hundreds of U.S. colleges and universities, so you have a good chance to find one. And if you can't find one, this site contains information and resources that make it easy to start a group yourself. Note that each campus group is basically an independent organization that controls its own activities. The Secular Student Alliance simply facilitates contact between groups, and provides guidance and resources for carrying out their activities. Its website also provides a directory of existing groups, news about events such as conferences, and information about scholarships available to secular students.