If you find yourself sharing code examples, you owe it to yourself to show them in their best light, beautifully rendered using code syntax highlighting. You could conjure up some CSS to do the trick, but why bother when Craig Campbell has you covered with Rainbow? A lightweight (1.4 KB), easy to use and extendable framework, it turns monochrome code examples into colourful works of art.
As Campbell puts it:
Your code is beautiful - show it off.
Completely themeable via CSS it comes with a host of themes to make your syntax highlighting journey that little bit easier. Great work and, even better, free.