silhoutteAC - More than 47,000 vector silhouettes for free
InterestExplorer - Discover 1000's of hidden Facebook interests to target.
IconBros - Free and continuously growing high quality icons
Facebook Ad Hunter - Facebook Ad Hunter uncovers hidden audiences to target when running Facebook Ads.
MakeAppIcon - MakeAppIcon resizes and optimizes your icon designs into all formats needed for iOS and Android mobile app!
upRive - Create and scale Facebook ads quickly and efficiently