I've had several poems published in Magazines, but I self publish my poetry books on Lulu. I was told I'd remain obscure by doing that, but it's not true. My first poetry book was featured in College English Composition classes and I have poems included in school textbooks. I may not get rich or famous that way, but it sure is a good feeling to know students are studying the words I penned.
Try submitting to magazines that publish poetry first--it's a good way to started. Good Luck! Elizabeth