Eye on FDA, one of my favorite sources, brought Medpedia's launch to my attention today. Medpedia is a authoritative medical wiki powered by a collaboration between the medical schools of Harvard, Stanford, Michigan, and the University of California Berkely School of Public Health.
As a wiki, Medpedia will likely be fluid, uptodate, and interactive. It promises to provide a wealth of useful information about health and medically related topics. Check it out!