Stationsklok 1.2 (by RIKLH.tk)
Stationsklok is a Dashboard widget that displays a world clock with the layout of the Dutch Railway Station Clock (on which you can see how much your train is delayed.

Binary Clock Widget 1.2 (by Christopher Marks)
Binary Clock is a dashboard widget designed to display a working binary clock in your Dashboard.

World Clock Deluxe X 4.4 (by MaBaSoft)
MaBaSoft World Clock CSM is a multi-time clock.

Digital Clock Widget 2.1 (by Chris Barr)
Digital Clock Widget is a digital clock for your dashboard.

Emory Dunn Digital Clock 1.0 (by Emory Dunn)
If you have a widget covering your clock, to check the time you must close Dashboard look at your clock then open Dashboard up again- this is the solution: a big digital clock that is displayed ON your Dashboard.

More Clocks 3.5.1 (by Luc Regnault)
More Clocks tells the time with different types of clocks.

Bar Code Clock 1.12 (by host in space)
Question: what to do on Christmas time? Answer: code, of course.

Roman Clock 1.1 (by Hauberg Software)
Roman Clock Widget is a digital clock using roman numerals to display the time.

Digital World Clock 1.1 (by Mat Schaffer)
Digital World Clock is a Digital Clock! Sadly, setting the foreign time isn’t as nice as with Apple’s world clock, but it’s not so bad.

Meridian 3.3 (by Recurring Dream)
Meridian is a World Clock, Alarm Clock, Stopwatch, and Timer for Mac OSX.

PPC2x86 0.1b (by Luke Lahnstein)
PPC2x86 is a Dashboard widget that counts down till the transition from PPC to x86 is meant to be complete.

MyResolution 1.1 (by Andrew Hedges)
MyResolution is pretty simple.

miniCpuHeat 1.3 (by PDAShock)
It’s necessary to control your Mac’s CPU heat, because in warm conditions a broken fan system can overheat and damage the CPU.

SysStat 2.0 (by iSlayer.net)
Allows you to view memory usage, CPU usage, network stats, uptimes, load averages and the top 3 process’s from one simple widget.

HardStat 2.01 (by iSlayer.net)
HardStat shows the amount of used and free space, plus total size of any local volume or AFP shared volume, including CDs and DVDs.