Biographies
Links
Ludwig Wittgenstein - Philosopher
http://www.handprint.com/SC/WIT/wittframe.html
Impressionistic commentary on Wittgenstein's life, accompanied by relevant quotations from the Tractatus
MacTutor Biography
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Wittgenstein.html
From the MacTutor History of Mathematics archive. Well referenced.
Island of Freedom: Ludwig Wittgenstein
http://www.island-of-freedom.com/WITTGEN.HTM
Fan site with brief biography and links.
Wittgenstein, Ludwig Josef Johann
http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Wittgenstein.html
Very detailed biography which quotes from Wittgensteins works. Has links to other sources.
Journeys In Thought: Wittgenstein
http://www.open2.net/journeysinthought/biography_wittgenstein.htm
Biography to accompany a BBC Radio Three philosophy series. By Jonathan Re.