JavaScript Templates : For web application developers, the '''JavaScript Templates''' engine from TrimPath is a lightweight APL / GPL open-source component that lets you hav...
Zero Clipboard : The Zero Clipboard library provides an easy way to copy text to the clipboard using an invisible Adobe Flash movie, and a JavaScript interface. The "Z...
rsvp.js : A lightweight library that provides tools for organizing asynchronous code
Moment.js : A javascript date library for parsing, validating, manipulating, and formatting dates.
Add Clippy or his friends to any website for instant nostalgia.