Smith, an academic librarian at the U. of South Florida and a specialist in digital genealogy, outlines different social networking services and how genealogists can use them to share information, photos, and videos with family, friends, and other researchers. He discusses blogs, wikis, Facebook, virtual worlds, message boards and mailing lists, collaborative editing, genealogy-specific networks, podcasts, RSS feeds, sharing personal libraries, social bookmarking, and tags. There is no index or bibliography. Annotation ©2010 Book News, Inc., Portland, OR (booknews.com) Distributed by Syndetic Solutions, Inc.