Parked.com is a two-click PPC domain parking company. They use Yahoo as an ad provider.  Registration of new customers requires approval. A minimum of 10 domains is required.  Image and color can be customized, rich reporting tools available. All templates are of the same type.

Two-click monetization method means high cost per click (CPC), but low clicks/visitors ratio.

Parked.com nameservers are as follows:  ns1.parked.com, ns2.parked.com, ns3.easily.net, ns4.easily.net, ns1.zsof.com, ns2.zsof.com.

Approximate number of parked domains is 400K (August 2011).

Screenshots of domains parked with Parked.com: