This week’s headlines: Instagram Makes Photos Higher Def, GIFs Get More Prominence in Messenger, Meerkat Launches Cameo and Facebook Gives Users Greater News Feed Control.

The week’s news quick hits: Twitter Launches More Granular Demographic Targeting Called Personas, Facebook Testing Floating Video, Twitter Asks Users to Share Their Birthdays, Facebook Updates CPC Actions, Pinterest Launches Engagement Campaigns for Promoted Pins and Twitter Adding Video to Mobile App Ads.