This week’s headlines: Snap Launches Immersive New Ad Units, Snapchat Introduces Redesigned App and Pre-Roll Ads in Testing for Facebook Watch.

The week’s news quick hits: Snapchat Recommends Contextual Filters, Twitter Renames Save For Later Feature to Bookmarks, Facebook Informing Users They’ve Followed Russian Propagandists, Instagram Lets Users Edit Images Sent in Direct Messages, Facebook Testing Messenger Broadcast, Facebook Launches Mentorship and Support Tool and YouTube Getting Stories-Like Feature Dubbed Reels.