Impressionistic commentary on Wittgenstein's life, accompanied by relevant quotations from the Tractatus
From the MacTutor History of Mathematics archive. Well referenced.
Fan site with brief biography and links.
Very detailed biography which quotes from Wittgensteins works. Has links to other sources.
Biography to accompany a BBC Radio Three philosophy series. By Jonathan Rée.
Short introduction to life and works of Wittgenstein. List of works of, and secondary literature on, Wittgenstein.