http://www.supernetwork.net/csn/features/j19980601.htm

Keeping workers cool. Goes over common heat related problems, symptoms, and what to if the symptoms occur.

http://www.osha-slc.gov/TechMan_data/II_4.html

Osha's Technical Manual Chapter 4 section II-Heat Stress

A good source that offers an introduction, a section of heat disorders and heat effects and more.

http://www.umr.edu/~umrshs/heat.html

Offers the symptoms, mental status, core temperature and treatment of heat exhaustion and heat stroke

http://www.peiapathways.com/lvminter/self care/heatexha.htm

A good site that asks questions to determine if the signs of heat stoke or heat exhaustion are present as well as offering advise toward prevention of heat exhaustion and heat stroke