Emacs-w3m
   A simple Emacs interface to w3m.
   http://emacs-w3m.namazu.org/

Extension patches of w3m
   Various patches, some of which have been merged into w3m.
   http://www2u.biglobe.ne.jp/~hsaka/w3m/

w3m
   A collection of w3m resources, including screenshots, manuals, and information about various patches.
   http://www.w3m.org/

w3m-inu
   A developer's release that integrates various patches from the w3m-dev and w3m-dev-en mailing lists.
   http://www.sic.med.tohoku.ac.jp/~satodai/w3m/inu/index.en.html

w3m-mee
   A variant of w3m with support for multiple character encodings.
   http://pub.ks-and-ks.ne.jp/prog/w3mmee/