There is one website which provides such service and is becoming very popular nowadays , Many websites relating to Bitcoin casino , Bitcoin exchange and Bitcoin debit card are using such service and getting Number of active users / paying customers so if you want more members then you must try this website .
Why not you mind sharing the services name you are talking about. I guess it would be more helpful for people deciding further. At least we need price levels based on volume of leads you will be bringing. It would be nice that we will be needing to pay only for active customers.
I am looking for paid subscribers for a bitcoin news magazines which is also covers legit gambling sites reviews. I will be sending you detailed PM regrading this. Thank you for bringing up timely needed services.