I am a fan of several independent presses: 

• Tin House tops my list. This Portland-based publisher puts out edgy accessible work that can just knock your socks off, and they support the literary community through workshops. 

• Omnidawn Press, in Richmond, California, publishes poetry and prose. They also sponsor writing contests from time to time.

• WTAW Press (Why There Are Words), founded and directed by author Peg Alford Pursell, has published some of my favorite books. They sponsor readings and offer interesting volunteer opportunities.

• Torrey House Press promotes “conservation through literature.” I discovered them through the great essayist Nicole Walker.