Inter-university Consortium for Political and Social Research
Linked energy information on hundreds of topics crowdsourced from industry and government agencies.
Certified repository for Archaeology data
MAST: Barbara A. Mikulski Archive for Space Telescopes
MAST: Barbara A. Mikulski Archive for Space Telescopes
US Virtual Astronomical Observatory
Earth science data
Weather, climate, coasts, oceans, and geophysics etc