http://elinux.org/RPi_Hub
http://radiospares-fr.rs-online.com/web/
http://www.rs-particuliers.com/
http://www.ldlc.com/
http://coen.boisestate.edu/ece/raspberry-pi/
http://blog.afkham.org/2013/01/raspberry-pi-control-center.html
http://blog.afkham.org/2013/02/building-raspberry-pi-cluster-part-2.html
Unattended Raspbian install : http://www.raspberrypi.org/forums/viewtopic.php?f=66&t=50310
Read only rootfs : http://www.raspberrypi.org/forums/viewtopic.php?p=228099