The feed that Ask had was a Google Search feed.
Actually every parking company has that feed except Bodis. Do you know why DomainSponsor pays so much for certain banking US clicks? Well - it's because it uses the G search feed which is based on the Google Search network. So they are getting about 3x the payout amount or higher for countries like USA. Google and Yahoo have many different types of feed.
I can't get into what providers I use do to non-disclosure but I think if you know something about the industry then you already know what I'm using.
The only thing Ask was great was is monetizing banned domains. Most domains weren't banned back then. Now a lot of domains are banned by Google and Yahoo so the only ad providers to use are tier 2 providers which pay penny. Yes, penny - not even pennies...
On top of that tier 2 international coverage is scarce. If they'd have excellent coverage and pay me 1 penny per click I'd be VERY happy. That's pretty much how bad the tier 2 providers are...
Sadly many banned domains are excellent quality domains.
The biggest reason for the industry revenue decline is the banned domains. Also, Ask feed was the only feed that wasn't smart priced. Aside from certain crappy tier 2 providers that don't pay anything almost and Ask, there is no providers that don't smart price you anymore. Everyone has some sort of quality/smart pricing in place so you always can't make optimal. Even certain generics don't convert.