A dump of the CIA World Factbook, converted into a series of JSON documents. Updated automatically every Thursday.
An online database with pay-for-play access that lets you look up dossiers on Federal informants, law enforcement and federal agents, and lawyers and handlers of same. You can pay by the week or for a lifetime subscription if you want. Keep in mind that this may not have accurate data.
Declassified files pertaining to Project STARGATE.