Writers organizations

• The Author's Guild
• National Book Critics Circle
• National Writers Union
• PEN
• Poetry Society of America
• Poets & Writers
• Poets House
• Zoo Press Poetry Book & Chapbook Contests

Poetry Books Online

• The Contemporary American Poetry Archive
• Electronic Poetry Center
• Light and Dust Anthology of Poetry

Presses & Booksellers

• Back In Print:
• Coffee House Press
• Marsh Hawk Press
• The Feminist Press

Book Reviews

• American Book Review
• Bookwire
• Library Journal

Child-Free Pages

• There are a lot of places where one can get more information on childlessness, but the most comprehensive starting point I've found is the article database on the Raleigh, NC chapter of the No Kidding site.

• One other useful child-free site is Childless by Choice