A Slice of Philosophy: Wittgenstein - Short introduction to life and works of Wittgenstein. List of works of, and secondary literature on, Wittgenstein. www.findlink.dk/wittgenstein/wittgenstein.htm
Ludwig Wittgenstein - Philosopher - Impressionistic commentary on Wittgenstein's life, accompanied by relevant quotations from the Tractatus www.handprint.com/SC/WIT/wittframe.html
MacTutor Biography - From the MacTutor History of Mathematics archive. Well referenced. www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Wittgenstein.html
