The Linux USB Project: http://www.linux-usb.org/

Linux Hotplug Project: http://linux-hotplug.sourceforge.net/

Linux USB Working Devices List: http://www.qbik.ch/usb/devices/

linux-usb-devel Mailing List Archives: http://marc.theaimsgroup.com/?l=linux-usb-devel

Programming Guide for Linux USB Device Drivers: http://usb.cs.tum.edu/usbdoc

USB Home Page: http://www.usb.org