JS Bin - Sample of the bin:
Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.
hastebin - Pad editor for source code.
codebunk - Realtime Collaborative Editor with Code Execution, REPLs and Chat
GitHub Gist - Gist is a simple way to share snippets and pastes with others.
Clippr.co - Minimal Note Writing And Pasting Site