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

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

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

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

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