Google AdSense Widget
The Google Adsense Widget is designed for the Yahoo Widgets engine and will Windows, and should work on Mac OSX (let me know if it does).
The current version is 1.4
It can also be downloaded through the yahoo widgets gallery
It has taken a large amount of time to re-verse engineer the google adsense site and especially their login process. If you enjoy this plugin please kick $3.80 (the same price as a pumpkin spice latte at starbucks) my way via paypal to jehiah@gmail.com; Of course you should know that this plugin is easily twice as addicting as those starbucks lattes ;-)
3/24/07 1.4 Fixed Google csv change; fix month/day data (thanks to Stefan Schlichtharle)
4/21/06 1.3 Fixed Google login process, add user requested preference for font size and logo
1.1 Improved styling / Mac Support
1.0 Initial Release