This week’s headlines: YouTube Launches Paid Tier, Twitter Reaches Out to Developers During Flight Developer Conference and Facebook Overhauls Search.

The week’s news quick hits: Twitter Launches Conversion Lift Analytics Feature, Facebook Notifying Users When  Governments Access Their Accounts, Facebook Instant Articles Available for All iOS App Users, Google Photos Reaches 100 Million User Milestone, Facebook Testing Topic-Based Feeds and Instagram Launches Boomerang.