AHRQ Patient Safety Network (PSNet) is a new national web-based resource featuring the latest news and essential resources on patient safety. The site offers weekly updates of patient safety literature, news, tools, and meetings (“What’s New”), and a vast set of carefully annotated links to important research and other information on patient safety (“The Collection”). Supported by a robust patient safety taxonomy and web architecture, AHRQ PSNet provides powerful searching and browsing capability, as well as the ability for diverse users to customize the site around their interests (My PSNet). It also is tightly coupled with AHRQ WebM&M, the popular monthly journal that features user-submitted cases of medical errors, expert commentaries, and perspectives on patient safety. AHRQ PSNet and AHRQ WebM&M are both funded by the Agency for Healthcare Research and Quality and edited by a team at the University of California, San Francisco, with the technical support of Silverchair. This will be added to Healthcare Resources 2005 Internet MiniGuide.