HoboJacket is a "competitive platform where you can donate your rival college's jackets and shirts to the unfortunate because it's terribly unfortunate that people actually went to that other college." The winter coat drive project was conceived by Massachusetts Institute of Technology student Jin Pan. For more deets, check out the interview with Pan over at The Daily Dot.
UPDATE (11/29): Hobojacket.tk has been taken down by Pan, citing insensitivity of the concept.