This site maintained by the National Library of Medicine provides extensive clinical trials information including a database of active clinical trials in the U.S.

clinicaltrials.gov

This site provides education for CONSUMERS about clinical research.

https://www.fda.gov/

(PDF) This patient page from the respected journal provides a summary of clinical trials from the standpoint of the volunteer participant.

This patient page, About Research Participation, provides the public with information about research and research participation, so potential volunteer can make informed decisions about participating in research.

This site provides National Institute of Health resources for patients and families, including an extensive glossary of terminology used in clinical research.