Harvard University
Harvard Medicine: The Whole Brain
Detailed color images of the human brain, both normal and with various brain diseases, including Alzheimer's, Huntington's, multiple sclerosis, stroke, and AIDS dementia.
BBC
Bbc: Human Anatomy: Organs
Explore the anatomy of the human body. Click on an organ or other body part to read more about its structure and function, and then try out an interactive activity for that organ.
Bartleby
Bartleby.com: The Fore Brain or Prosencephalon
This site from Bartleby.com contains an intense, in-depth article from Henry Gray's Anatomy of the Human Body on the fore-brain or prosencephalon. The article discusses the thalamus throughout and touches on its functions as a whole.