Girafi - Get more from your website visitors. Referrals, feedback, e-mails & more.
AddThis - AddThis free website tools include share buttons, targeting tools and content recommendations help you get more likes, shares and followers and keep them coming back.
Ambassador - Referral Automation, Made Simple.
Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
Referral Candy - Run a fully automated, customizable and easy to integrate referral program for ecommerce.
AddToAny - Share buttons by AddToAny, the universal sharing platform for websites and apps.