Who feed Who?Google-Sedo,Yahoo-Parked.

[guiwang]

In these days,I am researching the domain name parking market.I trying to find out which WHO feed AD to those dmain name parking company.

For example:

Google -> Sedo

Yahoo -> Parked.

It seems there have a lot of other smaller search engine support domain name parking companys,and some domain name parking company have their own search engine.

Is there any one can tell me more about it?So I can work out a text to share with all of you.

Thanks

Bean