I recently came across an awesome site called Namedrive. Namedrive allows you to park any unused domains, that are sitting around , and you earn cash off of the clicks.
In about 2 months I have made almost $90, from only about 12 domains. The cost per clicks are reasonable, and the website is also simple to use. Below is some proof of some of my domains:
Namedrive allows you select custom themes and page layouts, and you can even include keywords, to narrow down results on the parked pages. You can also advertise your domain for sale.
If you would like to see an example of one of my pages you can go to http://www.highrise.co.za
If you have a few domains lying around that you aren’t using, sign up to Namedrive, and you can earn some cash.