Pastelink.net - Anonymously publish text with hyperlinks enabled.
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
Pastery - The sweetest pastebin in the world.
GitZip - Download or create a download link for a GitHub project folder/sub-folder or file.
Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.
GitHub Hovercard - GitHub Hovercard provides neat hovercards for GitHub.