Quite frankly, I think unless you have huge traffic volumes at DomainSponsor or ParkingPanel, then your domains aren't going to do too well. My payments from DomainSponsor have halved twice in successive months. They're now only between 1/3rd and 1/4th of what they were just 3 months ago. Which is why I started looking around again for new outlets. So far, I've liked Parked as the best alternative. They don't have the best landing pages, but way better than DS, they pay you twice a month, they pay you for every click from a visitor, they have reasonably good optimization selections, they have good, attentive support. Of course each domain is a bit hit-and-miss, as it is with most companies.