Silicon Alley Insider revealed this morning that Facebook is working on a “check-in” functionality similar to the one you can find in Foursquare or Brightkite (and now Yelp). When they reached Dennis Crowley, Foursquare cofounder, he said:
For his part, Foursquare cofounder Dennis Crowley told us he fully expects Facebook and others to launch “check-in” functionality, making it “commodity by the end of the year.”
via Facebook Is Working On A Foursquare-Killer.
What it means: if you’ve been following my recommendations closely, you know that “check-in” is one of the features of the perfect local media company of 2014. It’s already becoming a “commodity”, a must for any local media company mobile products. Check-ins also represent interesting data that should be added to merchant profile Web pages (like Yelp is doing).
Seb Provencher's Blog 
Thank God someone is still talking about Brightkite. From a community standpoint I think Brightkite allows much more connectivity. I see Foursquare making a comeback and Gowalla in third. If Facebook starts a check in process. I’m afraid it will blow them out of the water.
Business should be using check-ins as a commodity already. Everyone wants to be where their friends are.