Facebook - What Kind of CPA Offers?

Hello Fellow Warriors,

I am looking to expand my traffic sources. Wanted to get a head start here. I am aware that facebook is pretty strict with ad approvals etc.

What I was wondering for now was what kind of CPA Offers are allowed to be promoted on facebook. Lets say if you could provide an example of an offer from

1. Neverblue
2. Azoogle
3. MarketLeverage
4. RoiRocket
or any other network per say

I know through my research that in Facebook - the best offers are the ones to promote for which user does not have to pull out their credit card. But what exactly would facebook approve and what it won't is somewhat tricky. I know iPad, Rebills etc are banned from FB. But I am pretty sure that there are plenty of offer types available out there that facebook would allow.

If you don't want to post it here. Please feel free to PM me. I am just looking forward to getting a head start with FB Advertising.

Thanks to all.

Cheers!