WordPress Ad-Manager by CodeCanyon
WordPress Ad-Manager offers you a simple solution to implement advertising into your posts, your blog or any other WordPress page. You can use pictures and images or HTML snippets like Google AdSense to incorporate advertising in an easy way. You are able to select ads via Ad Zones, to re-size them or to limit the height or the width. WordPress Ad-Manager also offers statistics.
However, WordPress Ad-Manager’s best feature is its simplicity. It’s easy to set up and also comes with a widget.
WordPress Ad-Manager demo: http://geardev.de/envato/ad-manager/