Chartbeat

Chartbeat is the leader in real-time data, working with 80% of the top publishers in the US and in more than 35 countries across the globe to show these companies what matters so they can act when it matters. Through industry-first audience engagement and traffic insights across web, social, video, and mobile channels, front-line editorial and ad sales teams always know exactly what content is succeeding in reaching, engaging, and affecting the right people.

http://chartbeat.com/