A large and growing amount of health information exists on the Web. This information varies widely in quality and focus. The links on this site will lead you to reliable sources of information, some of which may provide personal health information; these are designed for educational use and are not intended to replace advice from a health professional. Some of the sites display advertising; the Marin County Department of Public Health does not endorse any product or service offers. Further, some of the sites may occasionally support or oppose a state or local ballot measure; the Marin County Department of Public Health does not promote or discourage the passage of any state or local ballot measure and does not use any County resources for campaigning purposes.