A list of most commonly drunk caffeine products and the amount of caffeine therein.
Coffee, grande (16 oz.) Starbucks has 550 mg. WOW !! Might as well take caffeine intravenously :-).
Nutrition Action Healthletter - Caffeine: The Caffeine Corner
Amit Shirodkar's blog. This blog has 2 parts: 1) My own thoughts on a variety of subjects. 2) A collection of links, stories, articles, etc. that I found on the web, liked and wanted to share with others.