New and expanded to reflect changes on the Internet, especially the explosive growth of the World Wide Web, this best-selling book is primer to the Internet for those who have little or no computer experience and a time-saving guide to resources for the more experienced surfer. In plain language it describes the Internet, how it works, and how to use various Internet tools. In addition, it provides an extensive listing of health-related Internet resources accompanied by reviews and descriptions - not just URLs of dozens of health related topics. The reader will find this directory a treasure trove of information resources available for health care professionals on the Internet.