I have a couple of web-pages where I write out some code c#, and some XML. I'd like to find a way to highlight the syntax of the different content to make it easier to read - very much like here on Stackoverflow?
I already use a bit of jQuery so something that plugs into that would be a nice fit.
Hm, I don't see where jQuery fits in there too well (because it is for DOM modification, not based on the textual content of the DOM).
Still, you might want to take a look at the very cool google-code-prettify. As far as I know, it is also used here at StackOverflow and it works like a charm for many languages. I use it myself and it's really easy to integrate.
You might want to look into Alex Gorbatchev's SyntaxHighlighter. It's one of the nicest formatters out there, and supports tons of syntaxes if you ever decide to format code in a new language.