Popular sci-fi site Tor.com (est. 2008) is launching a new book imprint called Tor.com: The Imprint and has posted new submission guidelines to help unagented authors propose their book manuscripts to the editors.
Now until August 31, 2014, the editors will review unsolicited submissions from authors. Submissions must be completed manuscripts of original sci-fi and fantasy stories with mainstream appeal. Suggested word length is 17,500 words and above.