RPM

Edwin Chan's RPM Center
Additional packages and unofficial updates to the Red Hat Linux distribution.
http://www.rpmcenter.org/

Fresh RPMS
A repository of custom-built packages for some of the latest popular software, many of which are not included in the main Red Hat distributions.
http://freshrpms.net/

Maximum RPM
An online book about using and creating packages.
http://www.rpm.org/max-rpm/

RedHat RPM ListServ
A listserv where users can get tech support and learn about the latest RPM developments.
http://tech.groups.yahoo.com/group/rpm-list/

RPM HOWTO
Information on building and using packages with RPM v3.0.x.
http://tldp.org/HOWTO/RPM-HOWTO

RPM PBone Search
RPM's for various distributions. Offers search in RPMs content and search of ftp servers. Also information about new RPMs.
http://rpm.pbone.net/

The Search Engine for Linux rpm Packages
Packages arranged in categories with a searchable database.
http://www.rpmseek.com/

Packaging software with RPM, Part 3
Introduces package scripting, triggers and variables. <small>(February 1, 2002)</small>
http://www.ibm.com/developerworks/library/l-rpm3.html

Packaging software with RPM, Part 2
Introduces patches and root-less RPM creation. <small>(December 1, 2001)</small>
http://www.ibm.com/developerworks/library/l-rpm2/

Packaging software with RPM, Part 1
An introduction to creating RPM packages. <small>(November 1, 2001)</small>
http://www.ibm.com/developerworks/library/l-rpm1/