What kind of ads do you use for your sites with medical and gambling content ? Which contextual company do you use, if any ?
i have some gambling type website, but i dont run any ppc add. if you are looking for, then i wud suggest you use adbrite, you can make good money with it.
3FN supports this kind of traffic. They have keywords you can advertise that pay $4/click and more for quality US traffic. Give it a try and see how it works. If you need help PM me.
These networks are not really contextual, but they accept gambling sites: - AdEngage - AdBrite - BidVertiser (I don't recommend this one though)