The Black Vault is a site which houses nearly 30,000 FOIA documents. It was started several years ago by a then teen who wrote to the US Government about some FOIA docs he wanted. He got the idea to post them online to save others from having to duplicate his efforts. Now, he has won over 76 awards, has over 10,000 archived news articles, and over 14,000 photographs of military aircraft, UFOs, JFK Assassination material, and much more. The Black Vault has been referenced as one of the largest technological achievements on the Internet!
I have spent hours on this site, it's incredible what's in here. If you click the link, be prepared to deal with some "missing time."