Cullen reviews issues and literature related to online clinical and consumer health information. Unlike many books bearing similar titles, this is not a bibliography of Internet health resources with information on how best to use them, although Cullen does discuss some prominent Web sites. Rather, this work covers the organization of online health information; the various standards that exist for ensuring its accuracy (and their effectiveness); and the ways that online information is changing how health professionals and the public learn, work, and communicate. Cullen considers current trends such as evidence-based medicine, open access to the medical journal literature, and integration of health information systems. She addresses issues and Web sites from outside the US and UK. This book will be very useful for students in library and information science programs with a focus on health sciences, as well as for practicing health sciences librarians. Some health professionals and students researching the impact of online health information will also find it helpful. Recommended. Upper-division undergraduates and above.