The fastest way to a person's heart? Through their ribcage.

We all know that our emotions reside in our brain, but the heart has long been linked to the ideas of love and affection. Logically then, the heart has become inextricably attached to Valentine's Day. Therefore, in honor of the heart, here are some links for you to peruse:

The Interactive Heart - less interactive than I had hoped and Firefox users will have to use the site map to navigate around, but lots of info here

Heart Evolution - a good visual comparing various vertebrate hearts

Some heart facts/trivia

Cardiovascular system video - rather dry, but informative