The Black Vault has an archive of over 3 million pages of government documents. It is the largest privately run online repository of declassified government documents anywhere in the world. They aim to expose government secrets and getting down to the truth. Every page, photo and video in the "FOIA Document Archive" was obtained through the Freedom of Information Act (FOIA) or through other means of accessing U.S. government public information.

https://www.theblackvault.com/documentarchive/