CSS3 Animate It
CSS3 Animate It is a plugin I created for web developers and designers to use. The plugin allows developers to easily incorporate animations on scroll to their site quickly and easily.
I originally created the plugin for my own use, however, I released it to the community and it blew up from there. I had completely forgot about it for a couple of years, until I saw it being used on a few websites. When I checked back on it I noticed that it is being used all over the place and the site gets around 20k views a month. CSS3 Animate It is now one of the most popular CSS3 animation libraries available on the net.