Adultsearch and Skipthegames are a couple of others that have some usefulness. Of course, it's a "buyer beware" scenario and you always need to do your homework. For sensual massage, there are a lot of listings on Bedpage in both the therapeutic and bodyrub sections.

I've been a P411 member for many years, and it's a good resource for local as well as visiting providers in all price ranges. A new feature allows you to give a limited access to your profile to a non-member provider for screening purposes.