September 11th sourcebooks
A major digital library of documents relating to the September 11 terrorist attacks created and maintained by the National Security Archive, George Washington University. Their main strength is is publishing declassified security documents from the American government. These include the complete air-ground transcripts of the hijacked 9/11 flight recordings as well as numerous White House memos and briefings relating to the 'war against terrorism'. Material is being continuously added to the site.