AdTargeting.io - AdTargeting - #1 Free Facebook Interest targeting tool. It enables you to discover hidden or niche interests, and max the ROI of Facebook ad targeting, with millions of daily updates on keyword search and trend database.
Rocket Fuel - Rocket Fuel delivers a leading programmatic ad buying platform that harnesses the power of artificial intelligence to improve marketing ROI across all channels.
InterestExplorer - Discover 1000's of hidden Facebook interests to target.
Ad Targeting - Rocket Fuel
Ubersuggest - Want more traffic? Ubersuggest shows you how to win the game of SEO. Just type in a domain or a keyword to get started.
Facebook Ad Hunter - Facebook Ad Hunter uncovers hidden audiences to target when running Facebook Ads.