Q-Stats - Get free marketing insights for every question on Quora.
Animista - Create beautiful CSS animations in your browser
Site Rank Data - View historical rank information of websites via time series charts.
Keyframes.app - A timeline editor for CSS animations
HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations