FameBit - Easiest Way to Find, Hire, and Work with YouTube Influencers
Referral Candy - Run a fully automated, customizable and easy to integrate referral program for ecommerce.
Assmb.ly - Powered by intelligent technology, we’re delivering the content readers need, exactly when they need it, across four dynamic brands (and counting).
Viral Loops - Viral Loops is a viral and referral marketing platform to launch ranking competitions, sweepstakes, pre-launch and referral programs.
inzpire.me - An end-to-end solution for influencer marketing
Firewards - Setup a referral and rewards program for your email list or newsletter.