Links 

The following are links to pages that deal with caffeine content and caffeine's effects on the body:

Brochure on caffeine:
http://ificinfo.health.org/brochure/caffeine.htm

Caffeine's negative effects on heart:
http://www.heartinfo.org/nutrition/caffeine102999.htm

Caffeine's possible use as a pain reliever:
http://pslgroup.com/dg/44502.htm

Caffeine's addiction:
http://lrs.ed.uiuc.edu/Impact/articles/caffeine/caffeine-old.html

How caffeine works:
http://www.howstuffworks.com/caffeine.htm

Caffeine's effect on allergies:
http://news.bbc.co.uk/hi/english/health/newsid_781000/781053.stm

FAQ
http://www.cs.unb.ca/~alopez-o/Coffee/caffaq.html