This week’s headlines: Instagram and Snapchat See Growth in Teens While Facebook Falters, LinkedIn Launches Native Video, and Facebook and Twitter Compete for Live College Football.

The week’s news quick hits: Medium Ties Claps to Author Payments, Walmart Partners with Google for Google Express, Publisher Logos to Appear Next to Articles on Facebook, Facebook Allowing Subscriptions Through Instant Articles and Snapchat Opens Up Official Stories to Influencers.