Impel : Impel takes the pain out of working with HTML5 asynchronous databases.
Statement callbacks? Transaction callbacks? One-to-many and many-to-many relati...
Headroom.js : Headroom.js is a lightweight, high-performance JS widget (with no dependencies!) that allows you to react to the user's scroll.
jQuery Masonry : A dynamic layout plugin for jQuery
The flip-side of CSS floats
Timeline : Beautifully crafted timelines that are easy, and intuitive to use.