Street Fight Daily: Uber’s Smear Tactics, Groupon Buys (Other) Swarm

A roundup of today’s big stories in hyperlocal publishing, marketing, commerce, and technologyUber Executive Suggests Digging Up Dirt On Journalists (BuzzFeed)… Groupon Acquires In-Store Analytics And Marketing Startup Swarm Mobile (TechCrunch)… U.S. Mobile Payments Market to Boom by 2019, Research Firm Says (New York Times)…