check out Omnidawn’s response to two questions about Independent publishing at the Poetry Foundation blog. excerpt:

We started Omnidawn in 2001 because we wanted to involve ourselves in small press publishing. Both Ken and I feel that one of the most important things we can do with our time and our resources is to participate in the work of bringing to the reading public books that are exciting, thought-provoking, enlivening — books that may not find a home with larger publishing houses.