Yesterday the Senate Judiciary Committee released Alito's questionnaire on its web site. The document, Questionnaire of Samuel A. Alito, Jr., of New Jersey, Nominee to the Supreme Court of the United States, is a 64-page PDF file.
Also yesterday, the National Archives released a collection of memos and other documents written by Alito during his tenure at the Department of Justice. The latest releases in the Archives Alito collection, Records Pertaining to Judge Samuel A. Alito, Jr., are from the files of Charles Cooper and Attorney General Edwin Meese III. [A tip of the hat to BeSpacific.]
[Update, Jan. 26, 2006] Jurist - Gazette, in a post entitled Alito Responses to Additional Written Questions [US Senate], reports on and links to a letter from Judge Alito to Senator Specter, answering senators' written questions submitted after the confirmation hearings. Alito's letter answering the supplemental questions is a 41 page PDF file.