As the latest addition to http://cat-v.org I have built a manual page web repository for both reference and historical research purposes at:
http://man.cat-v.org So far it includes Inferno, Plan 9 from User Space, Plan 9 2nd and 4th editions manual pages. (The differences between 3rd and 4th editions seemed minor enough to not justify adding 3rd, but if somebody wants me to add it I will be happy to do so.) I would love to add Plan 9 1st Edition and Unix 8th, 9th, and 10th, so if anyone has access to the troff source of any of those and would like to share it I would be very happy if they can email it to me or tell me where I could find it. The source for the app that displays the manual pages can be found as part of the standard werc distribution at http://werc.cat-v.org under apps/wman/, patches, bug reports and suggestions are very welcome too ;) Peace uriel