Announcing Easy AdSenser to manage all aspects of Google AdSense for your blog: insert ads into posts and sidebar, and add a Google Search box. Easy and complete! Now in Spanish, Portuguese and French.
Download: http://wordpress.org/extend/plugins/easy-adsenser/
Plugin homepage: http://www.thulasidas.com/adsense
Features:
1. Remembers AdSense code and your options by theme, so that you don't have to re-enter them if you play with multiple themes. [This feature provides a solution to Google's unwillingness to let you modify and customize the AdSense code -- you just store all the code variants in your blog database.]
2. Enforces the Google policy of not more than three ad blocks per page.
3. Sidebar widgets for AdSense for content and for search.
4. Sidebar widgets for Link units.
5. Control over the positioning and display of AdSense blocks in each post or page.
6. Simplest possible configuration interface -- nothing more than cutting and pasting AdSense code, and with sensible defaults for the few options present, all with clear instructions.
7. Internationalized (multiple languages supported).
Posted by the plugin author.