I think most large cities have a group called "Stitch and Bitch" and I am sure NYC is no exception. You might try groups.yahoo.com or meetup.com and search for your area. I don't think you'll have trouble finding one!
Annette, I've been looking too, I live in NY. Yeah, in the yarn shops you gotta buy their yarn to sit there I guess.
I read a couple months ago about a group that meets at Starbuck's on Broadway & 86th on Wednesday nights 7 - 9. I can't remember where I read that, maybe Craig's List. I'll look around and see if I can find it again.
Stitch n'Bitch used to have a group downtown, lower east side.
So, she says in her first book.