D-BUS's Home Page: dbus.freedesktop.org
A D-BUS Tutorial: freedesktop.org/Software/dbus/doc/dbus-tutorial.html
D-BUS freedesktop.org Specification: freedesktop.org/Software/dbus/doc/dbus-specification.html
Linux Kernel Source Code: www.kernel.org
Applications That Use D-BUS
Beagle, a search tool that indexes your entire personal information space: www.gnome.org/projects/beagle
HAL, a hardware abstraction layer: hal.freedesktop.org
Galago, a user presence framework: galago.sourceforge.net
Eggcups, a printer notification applet: cyberelk.net/tim/data/eggcups
GNOME Volume Manager, a storage and media policy engine: ftp.acc.umu.se/pub/gnome/sources/gnome-volume-manager