What embedded HTTP server library options should I look at?

I'm looking to write a small proxy server for kicks and giggles.

Apart from the options in libWWW, can anyone recommend any opensource options for the HTTP server and client code? Thinking of a library of some kind similar to libWWW.

Chosen language is C/C++ but open to Java, C#, Python... etc. :-)

From stackoverflow

• If you choose the Java way, take a look at Jetty. It's full featured HTTP server which is very easy to embed and pretty lightweight.