Valentine's Day links

A dose of cynicism for Valentine's Day.

Horror movie-themed Valentine's Day cards, including the Sharknado card. Related: Klingon cards.

Forget chocolate on Valentine’s Day, try semen, says Surgery News editor. Retraction, resignation follow.

Video: The Science of Chocolate (aka the real meaning of Valentine's Day).

The history of those chalky little pastel hearts with sayings on them. 

A collection of really nerdy Valentine’s Day cards (open list, so you can add your own).

Video: How The Heart Came to Be Associated With Love.

7 Aphrodisiac Cocktails to Put You in the Mood.

Everything you ever wanted to know (and more) about My Funny Valentine.

Anti-Valentine's Day cards from a bygone era. 

The Best Valentine’s Day Cards To Buy For Your Favorite Geek.

Prepare to be offended - the Holy Crap worst Valentine's Day card ever, plus runners-up.