GitHub Gist - Gist is a simple way to share snippets and pastes with others.
3Cols - Manage your code snippets in the cloud fast, easy and free for personal use forever.
SnippetsLab - SnippetsLab is an easy-to-use snippets manager.
Simple Snippets - Simple Snippets is place to easily create and manage your code snippets. The main features of the Simple Snippets: code highlighting, snippet groups, public and private snippets.
massCode - A free and open source code snippets manager for developers.
Quiver - Quiver is a notebook built for programmers.