Scirate
free and open access scientific collaboration network
Paperscape
Paperscape is an interactive map that visualises the arXiv, an open, online repository for scientific research papers.
IQSS: The Institute for Quantitative Social Science
The Institute for Quantitative Social Science
ICPSR: Inter-university Consortium for Political and Social Research
Inter-university Consortium for Political and Social Research
OpenEI
Linked energy information on hundreds of topics crowdsourced from industry and government agencies.
Archaeology Data Service
Certified repository for Archaeology data
MAST: Barbara A. Mikulski Archive for Space Telescopes
new MAST: Barbara A. Mikulski Archive for Space Telescopes
USVAO: US Virtual Astronomical Observatory
US Virtual Astronomical Observatory
GEOSS Portal
Earth science data
NCEI
Weather, climate, coasts, oceans, and geophysics etc