Originally Posted by TheWatcher

My baseline for keeping domains, when they earn $.05 a day I will definitely keep it.

There is no perfect parking service for every domains. You need to test them and try their respective services.

Here's a simple guide:
If your traffics mostly in NorthAmerica, I highly recommend parked parking service. They pay twice a month, which is really cool and only one in the business.

Now if your traffic is coming from asia or other part of the world, your best bet is domain sponsor, namedrive and other google feeds parking.

Hope this help, you can find out more at my blogs http://emil.king.net.
Regards,
em