comp.os.linux.development.apps - join
Writing Linux applications, porting to Linux.
Low activity, 1803 subscribers, Usenet

comp.os.linux.development.system - join
Linux kernels, device drivers, modules.
Low activity, 2489 subscribers, Usenet

comp.os.linux.announce - join
Announcements important to the Linux community. (Moderated)
Low activity, 598 subscribers, Usenet

comp.os.linux.x - join
Linux X Window System servers, clients, libs and fonts.
Low activity, 552 subscribers, Usenet

comp.os.linux.answers - join
FAQs, How-To's, READMEs, etc. about Linux. (Moderated)
Low activity, 508 subscribers, Usenet

comp.os.linux.networking - join
Networking and communications under Linux.
Medium activity, 3682 subscribers, Usenet

comp.unix.internals - join
Discussions on hacking UNIX internals.
Low activity, 596 subscribers, Usenet

comp.os.linux.security - join
Security and the GNU/Linux Operating System.
Low activity, 1796 subscribers, Usenet

comp.os.linux.embedded - join
Linux operating system on embedded hardware.
Low activity, 2069 subscribers, Usenet

comp.os.linux.hardware - join
Hardware compatibility with the Linux operating system.
Low activity, 1264 subscribers, Usenet