In addition to her Blogalicious poetry blog, poet Diane Lockward is now doing a free monthly poetry newsletter.
The first one offered a poem and a prompt, useful links (journals that read during the summer and print journals that accept online submissions), a book recommendation (The Working Poet: 75 Writing Exercises and a Poetry Anthology, edited by Scott Minar). There was also Molly Fisk's Poem-A-Day project for August.
You can can sign up for her newsletter at her blog.
Diane's own books of poetry are Eve's Red Dress, What Feeds Us and her newest collection, Temptation by Water.