On ronsuskind.com, under his section on the book The Price of Loyalty. Interesting collection.
The Price of Loyalty: The Bush Files

An Experiment in Transparency
These documents are drawn from a collection of 19,000 files of Paul H. O’Neill, the U.S. Treasury Secretary for the first two years of the Presidency of George W. Bush. Like all Treasury Secretaries, O’Neill was the top domestic appointment of the President and also a principal of the National Security Council. The files, which range from memoranda to the President to handwritten notes to “sensitive” internal reports, cover a sweeping array of foreign and domestic issues. They also display the attending political and personal matters that often determine policy. They were collected as part of a Treasury Department archiving process in which every item that crossed O’Neill’s desk, from every department in government, was copied into a TIF, or image, file. Documents cited in the “The Price of Loyalty” are presented with explanations of context and little comment. They speak, as does all irrefutable evidence, for themselves. More files of compelling public interest will be released in the coming days and weeks.