You will find that 2d can be as big a world as 3d, when asking or help you sould try and focus your questions, but if you do want a general chat you will find that many of the guys here have posted IM information in there profiles.
Also most of us hang out on IRC on the Efnet server in the chat room #xna, come on in and have a chat there.
BTW you will find that a lot of my work is in 2d and I post about it all the time on my blog.