Rainmeter
Open Source
Rainmeter displays customizable skins, like memory and battery power, RSS feeds and weather forecasts, right on desktop.
Bginfo
Free
BGInfo utility displays information on the desktop, and it works in a server environment as well.
Desktop Info
Free
Desktop Info displays system information on your desktop in a similar way to some other desktop information tools.
XWidget
Free
XWidget is a Free desktop customization platform. It’s light, handy with powerful visual widget editor and very smooth animations.
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.
