Workflowy - A better way to organize your mind.
Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.
A5 - Takes notes in your browser. Elegant & simple.
GitHub Gist - Gist is a simple way to share snippets and pastes with others.
Notepin - Extremely simple note-taking + blogging ✍️
hastebin - Pad editor for source code.