New syntax highlighter for jensjaeger.com
This post is part of the archive. It was written years ago, so some of the tools, versions and links may be outdated.
I just replaced the relative simple Highlight Source Pro with the much more advanced Crayon Syntax Highlighter.
Crayon has an awesome theme editor with a lot of predefined code styles:

And helper for the editor to insert code snippets:

And some fancy ui controls in the code block:
#!/usr/bin/ruby
puts "Hello World!"
Happy coding!