Thanks to Rachel who conducted an amazing interview and show with Wally Lamb tonight about The Hour I First Believed. As discussed during the show, here are links to various writer's critique groups as well.
Romance Writers of America offers local chapters with guest speakers and critique groups
Mystery Writers of America offers regional chapters
The Writer's Guild of America offer links in its Writer's Resources area to many fellowships, writing programs, and workshops
For writer's of children's books the Society for Children's Books and Illustrators offers local chapters with critique groups.
Enjoy the show with Wally below!