Easiest way to monetize your WordPress website
This plugin enables adsense revenue sharing for authors on your wordpress site.
WP eBay Ads - allows you to easily insert eBay product listings into your WP posts, and earn commission from sales.
WP eBay Daily Deals - allows you to easily insert eBay Daily Deal listings into your WP sidebar, and earn commission from sales.
Show used cars for sale in US on your website for free. This widget generates HTML that will show up on search engines as a part of your website.
Make your Own Revenue Share Website with this free Plugin
AdSense-Deluxe2 Plugin for WPMU and Standalone WordPress.