Facebook and Groupon apps add competing "Nearby" features for local discovery

Skift Take
Facebook's and Groupon's just-added Nearby features aren't Yelp killers given its depth of user reviews, but they are right in Yelp's kitchen.
It's all in the 'hood at Facebook and Groupon as both brands within days added or updated identically named Nearby features in their mobile apps.
Together with Airbnb and Hipmunk launching neighborhood-oriented features, as well as Google's big local push last week with Google Maps for iOS and an upgraded Google + app, and buttressed by the GPS powers built into smartphones and tablets these days, there hasn't been this much focus on "local" since Yuppies discovered dilapidated-urban brownsto