<https://blog.joemanna.com/foursquare-marketing/#richSnippet>
<http://schema.org/description>
"Authored by Joe Manna - Foursquare is the leading location-based service (Gowalla's second) that empowers consumers to share their visits with local attractions, events and businesses. In light of the massive growth, competitive nature of Foursquare and valuable \"landing pages\" that the site provides, many business owners aren't leveraging it for organic, viral marketing. Yes, I used \"viral marketing,\" but trust me, it is. "
<https://blog.joemanna.com/foursquare-marketing/>