The Influencer Marketing Stack - Free resources to launch a killer campaign
inzpire.me - An end-to-end solution for influencer marketing
Top Instagram Influencers Ranking - Curated directory of Instagram bloggers by country&category
Twtrland - Build your twitter presence and connect w/ influencers
MakerAds - An unobtrusive ad network for makers
Shared Count - Track URL shares, likes, tweets, and more.