www.clinicaltrials.gov

Provided by the National Institutes of Health, the Food and Drug Administration and other health agencies, this site's content is one of the best examples of how the Web can do serious good. ClinicalTrials.gov's searchable database covers 5,800 clinical-research studies under way in 63,000 locations in the U.S. and abroad, of every conceivable disease and condition. Visitors to the site can easily--and confidentially--check whether they or ailing loved ones are eligible to participate.