Maybe planning on opening a domain parking business
 

Hello,

I have been parking a few of my own domain names at many different domain parking sites for months now and most pay me 50% they say. So that means they are making the other 50% and keeping it as their service. My question is does anyone think it would be worth trying to open a site like this? A Paid Parking/Domain Selling sites? Think they make good money? I'm very interested in starting one. Please post thoughts. Thanks

They make good money. However, to start one up you need a very good anti-fraud system (to guard against paid clicks), lots of cash to ride through the lean months, and advertisers willing to trust you.

It definitely has the potential to be very lucrative, but it could be very difficult to set up. You should only do it if you have a workable, well-though-out plan of how you will promote it, and find a large number of advertisers quickly.