http://www.algonet.se/~leif/yfWEI93a.html This is an abstract of a study done on the relationship between mercury in different organs and different predicting variables. 

http://www.holisticmed.com/dental/amalgam/ This is a review of the detrimental health effects of mercury in amalgams, and it contains many links to other amalgam informational sites.

http://www.bioprobe.com/ReadNews.asp?article=34 This article backs up claims of health detriments due to mercury amalgrams with government data over 6 years.

Healthcare-

http://www.epa.gov/docs/grtlakes/seahome/mercury/src/mercmed.htm Mercury in Medical Institutes.  Includes a virtual tour of a medical facility to explain sources of mercury as well as lists of equipment that use mercury.

http://www.orcbs.msu.edu/AWARE/pamphlets/hazwaste/mercuryfacts.html A fact sheet on mercury for healthcare professionals.  It includes history, sources, toxicity, exposure, and mitigation addressed to the healthcare environment.

http://danpatch.ecn.purdue.edu/~epados/mercury/pano/src/mercrisk.htm This site has sources of mercury in humans, effects of exposure, and case studies in mercury exposure to humans based in medical facilities.

Thermometers-

http://www.epa.gov/region1/pr/files/113000a.html This is an EPA press release to New England communities to eliminate the sale of mercury fever thermometers.