Free online classified ads and job posting at Astanda.com
http://www.opersys.com/LTT/
The Linux Trace Toolkit catalogs system events in minute detail, and allows a user to determine exactly what is transpiring on his system, down to the microsecond.
http://nlug.org/webring/
Linux Users Groups WebringWebring containing listings of many Linux users groups throughout the world.
http://www.linuxvirtualserver.org
Complete Open Source solution to build clusters of Linux machines.
http://www.linuxvoodoo.com
Provides technical support on installation, configuration, security, hardware/software drivers.
http://lwn.net/Kernel/
Coverage of Linux Kernel development.
http://www.linux-bsd-central.com
FreeBSD/Linux news and howto guides. For Freebsd use url www.linux-bsd-central.com/index.php/content/category/4/9/26/
http://kernel.secsup.org/linux/libs/pam/
Linux Pluggable Authentication Modules (PAM) is a flexible mechanism for authenticating users using alternative authentication schemes.
http://linux.crynwr.com/
Guides to Linux supported hardware.
http://www.linux-tips.net
Place for Newbies to come and learn and experts come to share. Anyone can submit tips.
http://www.ddj.com/184411098
When dealing with realtime systems, IPC overhead becomes important; examines two of the best IPC mechanisms available for Linux: FIFO, shared memory. [Dr. Dobbs Journal] (November, 1999)
http://www.linux.org/news/index.html
Another listing of press articles. Updates every few days.
http://linuxvm.org/penguinvm/
Linux/390 at Princeton University.
http://linux.a386.nocrew.org/
Port to a386, an i386 CPU simulator.
http://www.uclinux.org/
Home page for the Linux/Microcontroller and Linux without MMU project.
http://www.linux.sgi.com
Porting Linux and Red Hat 5 to the SGI Indy machines. FAQs and general information.