CollegeMedium

http://http://collegemedium.com/
The Best Way to Reach Students CollegeMedium is a classifieds site that lets users target a specific school or campus. Anything that can be posted on a campus message board can also be posted on CollegeMedium. So, save a tree by posting on CollegeMedium.com

Chegg

http://http://www.chegg.com/
Chegg.com has a campus-centric focus to its services, so students (on a specific campus) can easily buy and sell goods through personal, face-to-face interactions—eliminating the hassle and costs of shipping and other fees that plague most used textbook-finding services, as well as assuring the customer satisfaction before product purchase. On Chegg.com, students can register for FREE with a university email address.