jQuery: The Write Less, Do More, JavaScript Library – “jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development.”
Processing 1.0 – “Processing is an open source programming language and environment for people who want to program images, animation, and interactions.” The original language.
Processing.js – “Processing.js is an open programming language for people who want to program images, animation, and interactions for the web without using Flash or Java applets.”