Dovetale - Find and work with influencers using image recognition
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Rep - Influencer marketing made easy
Event Hunt - Startups and Tech Events Curated By Locals
The Influencer Marketing Stack - Free resources to launch a killer campaign
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets