Scientific Wiki Sites
From NMR Wiki
OpenWetWare "wet" biochemistry wiki
SklogWiki Thermodynamics, Statistical Mechanics, Computer Simulation of Materials
Gagne Lab @ Laval University - Québec, Canada. Many NMR Topics.
biowiki.org bioinformatically-inclined wiki
ScholarPedia Peer-reviewed online Encyclopedia
Scientific Computing on OS X collection of links