The Internet Writing Workshop works on a similar premise as BIW through email groups, except on a grandeur scale. They have three categories, each with a specific goal — to critique, to discuss and to educate. The critiquing and discussion categories are further divided for specificity.
The critique groups are divided into genres: Fiction, Lovestory, Nonfiction, Novels, Poetry, Practice, Prose/Flash-fiction, Script-writing, and Child/Young adult. The discussion groups are divided into Writing, Creative Nonfiction, Market Chat and Speculative Fiction Chat.
The Internet Writing Workshop welcome all manner of writers, over the age of 18, regardless of their experience or publication prowess. There is a huge resource for writers to tap into here but you also have to be willing to participate and of course, receive criticism.
* Visit The Internet Writing Workshop