TakeNote - A web-based note-taking app with GitHub sync and Markdown support.
notepad.pw - notepad.pw is a online notepad which allows you to save your text in the cloud with features like
PlicPad - Shareable notepad without urls
aNotepad - anotepad.com is an online text editor that you can write notes and anotepad also has great stability
NoteAway - NoteAway is the simplest, most convenient way to take quick notes on OS X.
Minimalist Web Notepad - Simple open source text editor in the cloud.