If you have a retail business, especially one where customers can stay for a while, it might be a nice perk to offer them free WiFi as an incentive to checkin with your business on Facebook.
D-Link has a new router, developed with Facebook that allows you to offer this!
Their press release reads: The D-Link 11AC Router with integrated Facebook Wi-Fi delivers advanced, reliable connectivity and an easy-to-use experience for both small businesses and their customers. The router prompts customers to check in to their location on Facebook to connect to free Wi-Fi without the hassle of entering codes or creating new accounts. In addition, the integrated Wi-Fi solution helps small businesses increase check-ins to help drive brand awareness, direct communication and interaction on their business Facebook Page. In previous tests, businesses saw an average of three times more check-ins using Facebook Wi-Fi routers versus without.