Peanutheads.com
Students can buy and sell class notes, used books, study materials, and rank their courses on Peanutheads.com. Users can also earn “FairMiles”, by interacting on the site (inviting friends, selling notes, etc..) that can be exchanged to buy iTunes and Amazon gift cards.
“Students not only can make money off the site but we reward positive, efficient behavior as well, which definitely differentiates us from other sites,” says Peanutheads CEO Bojan Ridjosic.
The site is still expanding (available mostly in California and Canadian universities), but students can request to have Peanutheads.com at their school.