Free SimpleNote dashboard widget for Mac

Embed Google things (maps, calendars, searches, comments, etc.) on your site

PHP Function Reference - Dashboard widget

Dashboard widget that optimises PNGs through pngcrush and optipng

Handle rollover star clicky rating things

Useful guide to making Dashboard widgets with Dashcode

At last I can get real weather on my Dashboard. Far more accurate than the Apple/AccuWeather one

Useful colour picker widget. Similar to Photoshop’s

This is just wonderful. BSD-licenced UI goodness