Could try the Writers and Artists Yearbook for a starting point, but reality is that very little poetry is published because very few people buy poetry books. Internet has become just about the only place to get your voice heard if you are a poet...
I've heard of a site called "lulu" or something similar, try Google for it. I understand that it is a self-publishing facility. Otherwise, if you want to limit to online stuff, see:
poemhunter.com
Lots of good stuff on there.
Tony