MindMeister : MindMeister is an online mind mapping tool that lets you capture, develop and share ideas visually.
Mind42 : Collaborative mind mapping in your browser
EtherPad : Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js
metaflop : Metaflop is an easy to use web application for modulating your own fonts. Metaflop uses Metafont, which allows you to easily customize a font within t...
Yellow Lab Tools : Online test to help speeding up heavy web pages