Publicfast - The first influencer marketing platform for Periscope
The Influencer Marketing Stack - Free resources to launch a killer campaign
Onalytica - Onalytica is a powerful software solution that specializes in providing influencer relationship management software and supporting a variety of professional services to help brand scale one-to-one influencer relationship management results.
FindCreators.io - Find creators based on any keyword, for free
Klear Chrome Extension - Find influencers right in your twitter feed
Reach - Mass messaging app for the iPhone