Every college has a newspaper that runs articles that are in the interest of the students. Try contacting your college newspaper's editorial staff. They should be more than happy to run a brief article on a service like this. Chances are good a student you know is involved with the paper. You can either contact them in person or through an anonymous letter.
College radio is also a great way to get the word out.
Many colleges have their own station and most of these stations actively promote topics just like this. There are millions of newsletters on and off the internet. If you answered yes to either of these questions you may be able to do a great service for the users of this site. Let the newsletter know this site is out there and what it offers, you may be surprised as to how helpful they can be. Most newsletter have an e-mail address where you can contact an editor and leave suggestions and feedback.