Government services web portals in the United States

thumb|The website during the presidency of Bill Clinton in 1995 thumb|The website following the first inauguration of Barack Obama in 2009

ClinicalTrials.gov is a registry of clinical trials. It is run by the United States National Library of Medicine (NLM) at the National Institutes of Health, and holds registrations from over 444,000 trials from 221 countries.

deletion event in 2025

Data.gov is a U.S. government website launched in late May 2009 by the federal chief information officer of the United States, Vivek Kundra. Data.gov aims to improve public access to high value, machine-readable datasets generated by the Executive Branch of the federal government. The site is a repository for federal, state, local, and tribal government information made available to the public.