CBprosense is a good alternative to explore. It was developed by me and works much like adsense (content targeting wise).

It delivers an rss feed of commission paying ClickBank products (up to 75% per sale) to your page and you have much greater control over the appearance and size/content of the ads.

The program's page address is:
http://www.cbprosense.net

Check it out, i would love to hear some feedback and answer any questions.