Big fan of turtlecoin, very welcoming community which is really easy to get code into. My first project I've done a lot of contributing to, simple to get involved and dig into the core codebase and learn more about what makes a crypto tick. I've learnt a lot about monero/bytecoin/cryptonote just from hacking away on some bugs in the code.
Awesome. This Kevin Rose podcast is what got me interested, and I've been paying attention to Turtle for a few weeks now. I feel the same way you do about the community.
Turtle is my first experience with mining, JSON-RPC / interfacing with a blockchain, CLI wallets and various other cryptocurrency concepts. I've learned a lot in a short time.