Code Kata Resources

I've been accumulating resources for code katas recently so I'm posting them here in the hope that I don't just forget them or lose them down the back of the sofa.

Although there are a few in this list that have language specific solutions, most of them can be attempted in any language.

The last site in the list also has a very nice article about Kata and the Dreyfuss Model of Skills Acquisition by Dave Thomas that is well worth reading.