The most amazing things about Alf-Christian Achilles' Collection of Computer Science Bibliographies are, of course, the numbers. Numbers like 1,000 (number of bibliographies), 740,000 (references to "journal articles, conference papers, and technical reports"), 9,000 (cross references), 30,000 (references with URLs to an online paper), and 2,000 (links to other bibliographic sites). Bibliographies are arranged in fourteen subject categories (artifical intelligence to typesetting), and searchable (four variables plus full text). For an admittedly "on the side project" of a Ph.D. student, this is a staggering resource. Note that users should read the detailed FAQ section before beginning and that the site is conveniently mirrored at nine sites around the world.