CodeShare.io - Realtime code sharing for developers
Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.
CodePen - A front end web development playground.
Pastelink.net - Anonymously publish text with hyperlinks enabled.
Liveweave - Liveweave is a HTML5, CSS3 & JavaScript playground for web designers and developers
JustPaste.it - Want to share text with your friends? Paste it below and give them a link.