TDD resources

I´ve found some resources about TDD, some of them are in spanish.
https://groups.google.com/forum/#!forum/tddev-sp
https://groups.google.com/forum/#!forum/artesanos-de-software
https://groups.yahoo.com/neo/groups/testdrivendevelopment/conversations/messages
https://groups.google.com/forum/#!forum/growing-object-oriented-software
https://groups.google.com/forum/#!forum/clean-code-discussion