Offering free Wi-Fi to shoppers or diners is almost as essential to a business these days as having a public bathroom on site. But at the same time, you don't want to give it away to just anyone walking by—at least without getting something in return. So D-Link's new AC 1750 wireless router only doles out the Wi-Fi after someone has checked in to your business' Facebook page.
from Gizmodo http://ift.tt/1ttKzvZ
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