The authors define personal learning networks (PLNs) as informal online networks for lifelong learning. With this guide, teachers and administrators will first learn how to create their own PLNs to become networked teachers, then use the book's step-by-step instructions to bring learning networks to the classroom and implement PLNs throughout the school. The book begins by making the case for transformation, then gives specific ideas for using tools such as Twitter, Diigo, Google Reader, blogs, and Facebook. It also gives advice on advocating for change at the school and district levels, finding funding, creating support structures and policies, and overcoming common objections. Richardson writes about online social learning networks and education in blogs, journals, and magazines. Mancabelli is an educational consultant, Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)