Fedora

Core 5 Installation Notes:
http://stanton-finley.net/fedora_core_5_installation_notes.html
The unofficial FAQ:
http://www.fedorafaq.org/

Fedora's own rpms page:
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/3/i386/
http://download.fedora.redhat.com/pub/fedora/linux/core/4/i386/os/Fedora/RPMS/
Core: http://download.fedora.redhat.com/pub/fedora/linux/extras/5/i386/
Extras: http://download.fedora.redhat.com/pub/fedora/linux/core/5/i386/os/Fedora/RPMS/

Fresh RPM:
http://ftp.freshrpms.net/pub/freshrpms/fedora/linux/5/

Other:
http://mirror.spanasia.net/fedora/4/i386/os/Fedora/RPMS/
http://www.mjmwired.net/resources/mjm-fedora-fc4.html
http://linux-noob.com/review/fedora/fcrh/