Geek heaven. I mean really geek heaven. This site by Cornell University Library offers reprints of literally hundreds of thousands of archived papers for you guys to have some late night light reading. Nothing to thought-provoking or too complicated - they are merely reprints of Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance and Statistics. Easy stuff. Oh, if you have read all the reprints already, go check out their new stuff section. You might have missed some papers there. Or if you are too busy, you might want to access their RSS feeds on your desktop reader so you will be updated as soon as they are. By the way, ArXiv.org is a not for profit organization, so you better be grateful.

ArXiv.org