Medical & Health

Centerwatch...................... Great clinical trials listing service
Dr. Greene's Housecalls..... Wonderful pediatric site - answers via email - cool!
Family MEDs.................... Complete & excellent online pharmacy
Health Allies..................... They'll negotiate a bill for you if it's unfair.  Wow!
Health Grades................... Find top quality docs and rate those you've seen.
Med Terms....................... Medical dictionary written in layman's terms
NIH.................................. National Institutes of Health - good info but no tools 
Oncology.com................... Most comprehensive cancer resource site I've found
Palendromic Rheumatism... Most comprehensive cancer resource site I've found
Quackwatch...................... Report quacks or check up on them.  Fantastic!!!
Web MD........................... Lots of info - professionals, somewhat lightweight