Listed below are a series of links to fitness/wellness related websites that you may find of interest.
http://www.fitnesslink.com
http://www.jmu.edu/kinesiology/
http://www.active.com/
http://www.nhlbi.nih.gov
http://www.americanheart.org/presenter.jhtml?identifier=1200000
http://www.healthfinder.gov
http://www.cdc.gov
http://www.roadrunnersclub.org.uk
http://www.americanrunning.org/
http://www.runnersworld.com/home/0,,s6-0-0-0-0,00.html
http://www.humankinetics.com/
http://www.mayoclinic.com/index.cfm?
http://www.exrx.net/
http://jap.physiology.org/
http://www.adam.com/index.html
http://www.eatright.org/Public/