Health and Fitness
Scooby's Workshop - best for bodybuilding / weight training
Hope Health
National Institutes of Health - News & Events
Hypertension
Organic Food
Exercise Videos
BlueCross BlueShield
Good blog about things like posture, carpel tunnel, etc.
protein calculator
good nutrition site

Medical
human anatomy pictures
Merck Source - wealth of information, help with self diagnosis - symptom checker
MedlinePlus - topics, drugs, encyclopedia, news, directories
Dermatologic Images
Pain.com - search articles related to your illness
WebMD - news, diseases and conditions, a-z guides, etc
WHO (World Health Organization)
Medscape
RxList - the internet drug index
Aetna InteliHealth
KidsHealth
Photos of various conditions inside the ear
up to date medical info
full list of hormones
OR Live surgery videos
OR Live surgery videos
Best Hospitals
BrainPlace, images of the brain
constipation link