www.crossref.org
Crossref
https://www.crossref.org/
Crossref is open infrastructure linking the world's research. 26,000+ members, 167 countries, 2.1 billion monthly API queries.
ocw.mit.edu
MIT OpenCourseWare | Free Online Course Materials
https://ocw.mit.edu/
MIT OpenCourseWare is a web based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity
ourworldindata.org
Our World in Data
https://ourworldindata.org/
Research and data to make progress against the world’s largest problems.
data.worldbank.org
World Bank Open Data | Data
https://data.worldbank.org/
World Bank Open Data from The World Bank: Data
www.justice.gov
Department of Justice | Homepage | United States Department of Justice
https://www.justice.gov/
Official website of the U.S. Department of Justice (DOJ). DOJ’s mission is to enforce the law and defend the interests of the United States according to the law; to ensure public safety against threats foreign and domestic; to provide federal leadership in preventing and controlling crime; to seek just punishment for…