Links
For comprehensive facts about caffeine: coffeefaq (coffeefaq.com/caffaq.html)
To find out more information on specific products:
Coca-cola (www.coca-cola.co.uk)
Nestlé (www.nestle.co.uk) - includes useful information about processing and global sales of coffee
Starbucks (www.starbucks.com) - includes information on global sales and comprehensive information on coffee sources and policies on care of communities from which they vend.
Vivarin (www.vivarin.com)