This link will take you to a page listing the current catalog of Criterion Noir DVDs.
Of interest also is a link to an essay on each film in the catalog, including a lengthy article on Jules Dassins’ Night an the City (1950) by film essayist Paul Arthur, who passed away last week. Coincidentally, Night and the City stars Richard Widmark, who also died last week, and an article in this Weekend’s New York Times by Dave Kehr rates this as Widmark’s best picture.