This site is AWESOME! Idea started with 2 students who wanted to basically save money buying all those text books! They wished there was some way they could just trade with other students... and VOILA... twopickles.org was formed!
Site is simple and elegant but extremely fast in uploading the pictures for the things you want to trade. Way it works is... once you are in the site... you click the community you are in, like Georgia Institute of Technology etc then pick the category of the article you want to trade, post picture of the article if you have... and happy trading!
I posted so many things I feel somebody can eaily use.