Rainmeter
Open Source
Rainmeter displays customizable skins, like memory and battery power, RSS feeds and weather forecasts, right on desktop.
Desktop Info
Free
Desktop Info displays system information on your desktop in a similar way to some other desktop information tools.
GKrellM
Open Source
GKrellM (GNU Krell Monitors) is a system monitor software based on the GTK+ toolkit that creates a single process stack of system monitors.
Compare Bginfo with alternatives
Compare Desktop Info and Bginfo and decide which is most suitable for you.