Please check out the following rpm repositories also. Most of them are activated in medley's default configuration (for the distributions supported by the resp. repository).

• freshrpms.net by Matthias Saou
• PlanetCCRMA by Fernando Lopez-Lezcano
• NewRPMS by Rudolf (Che) Kastl
• spc repository by Link Dupont
• BIOrpms repository by Bent Terp
• pyvault by Jeff Pitman
• Dag's rpm collection by Dag Wieers
• NyQuist by Matthew Hall
• JPackage
• KDE for Red Hat by Rex Dieter
• Dries' rpm repository by Dries Verachtert
• GStreamer
• Vlugnet by Ronny Buchmann

Two interesting (Red Hat Linux based) HEP projects are:

• CERN Linux
• Fermi Linux