Back when I first mentioned the idea, people were kind of down on the idea of SciRate.com, Dave Bacon’s project to make a collaborative filter for the arxiv.org prerprint server. Not one to be easily discouraged, Dave has continued to work on it, and it now features papers from all the different arxiv categories, instead of just quant-ph.
If you’ve been sitting around thinking “Gee, I wish there were a Digg for hep-th, well, today’s you’re lucky day. If you haven’t, well, umm… Look over there! Shiny thing!