AffiliateWP - A powerful affiliate marketing solution for WordPress.
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
ReferralMagic - Turn your users and customers into referral magnets.
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
Everflow - Partner Marketing Platform - Track, Analyze & Automate
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.