Facebook Exchange

Facebook Ads - Image requirements
Images in your ads must be relevant and appropriate to the advertised product. Keep these policies in mind when you're choosing an image for your ad: ...
Wed, 29 Apr, 2015 at 10:04 AM
Facebook Retargeting - Pricing
Facebook ads are charged on a CPM basis. $0.45-1.50 for Facebook Retargeting $7-9 for Facebook News Feed Retargeting
Wed, 29 Apr, 2015 at 10:05 AM