Resources

Various resources I have used:

Research Facilities

Air Force Historical Research Agency at Maxwell Air Force Base in Montgomery Alabama. Historical records from the USAAF.
Mighty Eighth Air Force Museum in Pooler, GA just outside Savannah. Great WWII Exhibits in the museum. The Roger A. Freeman Eighth Air Force Research Center is where I spent a day researching the 306th BG.
National Archives and Record Administration in College Park, Maryland. This is where I look for records from OSS Stockholm. I suggest you spend as much time as possible doing online research before you go. That helped tremendously on my 2nd trip, October 2011.

Army Air Forces Collection Historical documents at www.aafcollection.info Historical Documents from World War II. You can view or contribute a document. You can also write a tribute to someone who served in the Army Air Forces during WW II.
ArmyAirForces.com. Their forum is an excellent place to begin your research. Here is their outline for locating information.
National Museum of the US Air Force, located near Dayton, Ohio. Quick history resource.
The American Air Museum in Britain. You can browse through and add records: People, Aircraft, Places, Missions, Units, Media.
Forced Landing Collection is a Swedish website (in English also) dedicated to information about all the forced landings there during World War II.
The National World War II Museum located in New Orleans, LA. Here is their guide to How to Locate Someone Who Fought in World War II.
Office of Strategic Services records at the National Archives.
Office of Strategic Services Society Resources