Information about personalized medicine abounds, yet it is difficult to comprehensively search for information on this topic due to the broadness of the term “personalized medicine,” the variety of terms that are used to describe this concept, the vast amount of pertinent journal articles and Web sites, and the fast pace of developments in this field. A selected list of Web sites is provided as a starting place for information about concepts, terminology, projects, databases, tools, and stakeholders related to personalized medicine.