This website has literature updates about diabetes militis type II.

http://endrcr06.mda.uth.tmc.edu/

The University of Texas presents articles about various cancers of the endocrine organs. The articles include text and drawings.

http://www.endocrineweb.com/

Just click on the diagram of the organ and get a description of the function and a discussion of related diseases.

http://www.endo-society.org/pubaffai/factshee.htm

You can read fact sheets from the Endocrine Society about things like environmental estrogens, prostrate cancer, and more.