Monetize your parking domains.

A simple technique to monetize your parking domains business.

Use wordtracker.com to moneitize your keywords to your content, Get all your domain names verfied by google, Once you do that, add a google site map to all of your verified domain names, Then use google analytics to spot your traffic for you. Find good high quality affiliate products to promote. Trust me there are a lot of high paying high quality products out there that you can promote. Set up some fresh content (Use whypark.com). This will let Google and other search engines rate you as important. Once these steps are done. setup your affiliate links with related articles and content. You can use article directories if you follow their rules. People click on the banners more than small text links. So use affiliate banner above and below every article.

See your affiliate commission rolling.
Also I suggest that you try CPA instead of CPS.

Good luck!