In this update of The Lawyer's Guide to Fact Finding on the Internet, 2nd ed., Levitt and Rosch (co-authors, The Cybersleuth's Guide to the Internet, 2009) present information for lawyers and others on conducting free investigative or background research on potential employees, deadbeat clients, or missing persons. Additions include new Web sites, a new chapter on social media sites, and other publicly-available information online. Appendices feature examples of filings and rulings in legal cases using electronic data. The accompanying CD-ROM contains a hyperlinked index of Web sources listed in the book and checklists, e.g., Source Credibility Checklist. Annotation ©2010 Book News, Inc., Portland, OR (booknews.com)