Here’s what we’re covering on this week’s episode:

Top Story: Search kicks social out of top-referral source

Facebook
— Facebook considering adding “downvoting”
— Is Reddit the new golden child?
— Facebook Lives (for not-live shows)
— Page-tagging disabled for third-party tools
— Is FB sharing your private messages?!
— AR drawing tool added to Stories

Google: New in-stream mobile video ads
Snapchat: CTAs added to SC custom lenses
Pinterest: Cover images introduced