Biology Basics

Hey folks, thought that I would start a thread of good places to go for basic biological knowledge.
While it's always great to cite papers for new research, it's not always useful when you are trying to get the bigger picture. There is no one paper on how the liver functions, but there are places that you can go where all of the good science has been compiled on the liver.

So here it is, my humble list of the best places on the internet for biological/medical/nutritional information. As I am in the USA my links are US based and in English. Please add good links to information from other countries and in other languages as you see fit.

As always, this thread and these links are NOT a substitute for a doctor. Use it to gather information and learn, NOT to diagnose.

NIH Medline Plus: http://www.nlm.nih.gov/medlineplus/healthtopics.html

The Mayo Clinic: http://www.mayoclinic.org/

The Center for Disease Control and Prevention: http://www.cdc.gov/

And a bit more global,

The World Health Organization: http://www.who.int/en/