OpenWetWare
I've always rather like the term 'wetware', so I suppose I'm duty-bound to promote something calling itself OpenWetWare:OpenWetWare is an effort to promote the sharing of information, know-how, and wisdom among researchers and groups who are working in biology & biological engineering. OWW provides a place for labs, individuals, and groups to organize their own information and collaborate with others easily and efficiently. In the process, we hope that OWW will not only lead to greater collaboration between member groups, but also provide a useful information portal to our colleagues, and ultimately the rest of the world.
In fact it's so cool, it offers its content under not one, but two open content licences: CC and GFDL. (Via Public Library of Science - Publishing blog.)