Ushahidi - Ushahidi gathers data from various sources and reports incidences around the world in real time.
The Influencer Marketing Stack - Free resources to launch a killer campaign
Dataminr - Real-time Information Discovery
Content Marketing Stack - A curated directory of content marketing resources
Visual Society - Build a website to showcase and/or sell your photos online.
Mention ✪ Influencers Dashboard - Identify the influencers talking about your company