Seemingly in parallel with the land grab going on online, mobile M&A is heating up. Earlier this month, Microsoft acquired EU ad firm ScreenTonic and prior to that voice services and directory provider Tellme. Today, mobile ad network Third Screen Media went to AOL and will become a subsidiary of Advertising.com. Microsoft had been seen as a Third Screen suitor earlier in the year.

Third Screen is a strategic acquisition for AOL, as mobile becomes a more important category and advertising becomes the source of more and more revenue for AOL.

Related Topics: AOL: Mobile | Microsoft: Bing 411 | Microsoft: Outside US | Search Ads: Mobile Search

About The Author: Greg Sterling is a Contributing Editor at Search Engine Land. He writes a personal blog Screenwerk, about SoLoMo issues and connecting the dots between online and offline. He also posts at Internet2Go, which is focused on the mobile Internet. Follow him @gsterling. See more articles by Greg Sterling