Here's an interesting CNN article about authors who have made their way through POD services and self-publishing.
I sometimes think about how much $$$ goes into the poetry contest circuit and for others looking for another outlet, this could be the way to go...
This article mostly deals with fiction, but poets have the opportunity to go this route if they like.
With the internet, we are no longer limited to getting the word about books.
Here's the CNN article--
More authors turn to Web and print-on-demand publishing