Website Feedback

Your opinions and feedback help us develop new features that make more informative, engaging, and easy to use.

To provide feedback to you can mail your comments or questions to

Improving our website

The team is continually testing and revising the website to make it better for visitors like you. We use focus groups, interviews, and usability tests to discover how people find, understand, and use the information on

The 2008 redesign of and development of Health Topics A to Z was informed by 15 different studies conducted over 4 years with more than 700 web users with limited literacy skills or limited experience using the web. View a summary of the research findings in Health Literacy Online: A Guide to Writing and Designing Easy-to-Use Websites.

Other past evaluations include:




  • An online survey based on the American Customer Satisfaction Index (ACSI) was initiated to measure user satisfaction with
  • Usability testing was conducted with general audiences to learn about users’ experience finding information about anthrax and bioterrorism on and the Surgeon General’s website.
  • The español sub-site of was tested and enhanced in response to focus groups with Spanish-speaking patients who took part in the design process while being taught how to use the Internet and
  • Previous evaluations lead to the first redesign of, which included a new site and database architecture, interactive features, a hierarchical thesaurus, and advanced searching and filtering tools for users.