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.
Nute - Super simple one page note taking app
Etherpad - Etherpad is a highly customizable Open Source online editor providing collaborative editing in...
Roam Research - A note-taking tool for networked thought