Entry from the Stanford Encyclopedia of Philosophy by Andrew Hodges.

Undergraduate biographical essay by John M. Kowalik.

British mathematician, cryptographer, and one of the key inventors of the modern computer. After his profound contributions to helping win World War II, he was persecuted for his homosexuality by his own government, and driven to suicide. Maintained by Turing biographer Andrew Hodges: extensive resources and links, online versions of several long essays on Turing.

Biography from the MacTutor History of Mathematics archive.

Biographical entry in the FOLDOC.

Encyclopedia biography from Wikipedia.

Archive and historical records pertaining to the work of computing pioneer Alan Turing.

Collection record of Turings papers at Kings College, Cambridge.

Biography, bibliography and links.

Profile of the groundbreaking Cambridge mathematician. [BusinessWeek]

Turing's paper which discusses the halting problem in the context of Gödel's Incompleteness Theorem. HTML.

Article from the Stanford Encyclopedia.

Digital archive of items relating to Alan Turing.

Article on Turing Machines from the Stanford Encyclopedia.

Stories involving Turing.