RedHat's community Linux.
RedHat are pushing towards having more community involvement (the RedHatLinuxProject) with their !SoHo?/hobbyist Linux distribution.
Currently at version 9 as of July 2003, but a new beta called Severn has just been released.
Get involved with any of the mailing lists:
If you have RedHatLinux, you almost certainly should check out AptForRpm (with reference to, in particular, FreshRpms and Fedora.)
21 pages link to RedHatLinux: