I have seen a big drop in those as well, mainly due to the payment processor issues. Fortune affiliates does well for me now, but they also signed up thier players with quicktender right at the start. I also do well marketing RTG casinos as well as Vegas Tech ones.
Fortunately I never gave up my day job as I always thought this biz was as risk to come to a sudden end, although it has not is good to have a backup plan.