ShareTheLove is a Wordpress plugin which Hearts will slowly drift down the page on Valentine's day.
It injects @rfreebern's Falling-in-Love into a Wordpress site.
Falling-in-Love does all the heavy lifting. You can find it at http://blog.rnf.me/Falling-in-Love/
The plugin will only have hearts fall on Valentine's Day
The plugin is written by John Romkey of Blue Forest Research, LLC.