YouLikeHits - YouLikeHits is an online service that brings results within seconds.
FameBit - Easiest Way to Find, Hire, and Work with YouTube Influencers
Linkcollider - Link Collider is a web-based service that is designed to grow your online business, social media networks, and personal blogs.
inzpire.me - An end-to-end solution for influencer marketing
LikesPlanet - Get Facebook likes, Twitter Followers, YouTube Subscribers, Comments, and Shares.
Insense & Paid Media - Find creators for short-term and long-term partnerships