I've been trying out SNR Cash for a few months on my blog. I was skeptical at first because you had to use two different CCBill URLs, one for membership and one for webcam sales. That kept me from promoting them sooner.
SNR Cash then combined the membership and webcam sales together. Basically, you get credit for both in one URL.
My sales have been climbing consistently with memberships and I am getting a lot more sales then expected with the webcams.
I am pushing traffic through my blog by posting small video clips.
Here is a sample:
http://www.iseekgirls.com/g/snr/camwithher/0001001/
Keep consistent with webcam stuff is the key. There are always whales out there who can easily burn through money with no problem.