RexPad - Nimble collaborative note-taking.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Indigrid - Plain text outliner with side-by-side views.
A5 - Takes notes in your browser. Elegant & simple.
Etherpad - Etherpad is a highly customizable Open Source online editor providing collaborative editing in...
Knotable - Cut the noise out of busy email threads