On-line Text of the Tractatus with German original and English Tranlation: http://www.kfs.org/~jonathan/witt/tlph.html

    "Map" of Structure of Tractatus: http://www.kfs.org/~jonathan/witt/mapen.html

    Main (integers) Propostions of the Tractatus: http://www.kfs.org/~jonathan/witt/ten.html

    Russell's Forward to the Tractatus: http://www.kfs.org/~jonathan/witt/aintro.html

Biography if Wittgenstein: http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Wittgenstein.html

Bio of Wittgenstein: http://people.delphi.com/gkemerling/ph/witt.htm

Wittgenstein Gesellschaft: http://www.phil.uni-passau.de/dlwg/

General Wittgenstein Resources: http://www.ags.uci.edu/~bcarver/ludwig.html