for all their enthusiasm, can a group of dedicated amateurs really make a difference in the success of a book? Publishers think they can. Mulholland's Parker points to Kathleen Kent and her novel "The Heretic's Daughter," set in 17th century Salem, Mass. "As a debut author with a historical fiction novel that had a connection to her personal story, she really struck a chord with bloggers," she says, adding that Kent "really benefitted from blogger outreach."