
Javascript
Get flash to fully experience Pearltrees
dc.js - Dimensional Charting Javascript Library
SQL.js: SQLite Compiled to JavaScript via Emscripten
One of the many design goals of the JavaScript language was to keep it single-threaded and, by extension, simple. Though I must admit that, given the idiosyncrasies of the language constructs, it is anything but simple! But what we mean by being “single-threaded” is that there is only one thread of control in JavaScript; yes, sadly, your JavaScript engine can do only one thing at a time.
Getting Started with Web Workers
JavaScript Timers with setTimeout and setInterval
Javascript

