Dive Brief: 

• In yet another advertising move, Twitter announced Monday that Promoted Accounts are expanding to mobile. 
• Mobile Twitter users will now see Promoted Accounts in their timelines, similar to how Promoted Tweets appear. 
• The Promoted Accounts feature has been around on desktop since 2010 — appearing in the "Who to Follow" section — but the ad product previously didn't appear on mobile or in the timeline. 

Dive Insight: 

Twitter obviously understands the importance of offering mobile ad products. Additionally, the move from the "Who to Follow" section to the timeline section will make the ads markedly more visible to users. If the timeline view fairs well on mobile, there's a good chance that's how Promoted Accounts will begin to appear on desktop, as well.