Here's one of my favorite email lists I'm a part of: Python Weekly.

I recommend it to you, even if you're not a big Python person. What I like about it is just seeing the range of problems that can be solved. Honestly, I don't even understand most of the Python stuff that it links to. And I don't feel the need to understand most of it because I don't rely so heavily on 3rd party libraries (for good or ill). I read through the links and absorb ideas that I can steal.

Do it up.