The History of Valentine's Day

Detailed information from the History Channel on the origins of the most romantic holiday, including the real St. Valentine.
http://www.historychannel.com/exhibits/valentine/

Love Bytes

Bits and pieces of historical trivia.
http://www.angelfire.com/ar2/LoveBytes/

Saint Valentine's Day

Short entry about the holiday, from Electric Library.
http://www.encyclopedia.com/html/s/stv1alent.asp

Wikipedia: Valentine's Day

A detailed history from the online encyclopedia, with links.
http://en.wikipedia.org/wiki/Valentine%27s_Day

Annie's Valentine's Day History Page

History, legends and customs of the holiday taken from the World Book Encyclopedia 1998.
http://www.annieshomepage.com/valhistory.html