With ten million users now signed up, FourSquare's use as a distribution platform for travel products seems to be gaining momentum, with tour and activity platform Zozi signing a deal.
The partnership comes as FourSquare extends its existing Specials programme to include deals from a range of partners, essentially deep discounts on specific products.
Zozi joins LivingSocial and three other companies working with FourSquare on the scheme.
The tour and activity deal platform will provide products to FourSquare users as they arrive in a particular location, using the Explore tab within the mobile version of the service.
The social element is kicking in, too. Suggestions for products will be streamed automatically to the handset, but also based on whether a FourSquare contact has also used a product.
Most importantly, users will be able to buy the deal direct from the app or from the main website.
Zozi CEO and founder TJ Sassani says:
"FourSquare has one of the most rapidly growing user bases on the web, and when you add that to their vision and ability to target Zozi experiences in a highly relevant and timely manner, it makes them the perfect addition to the Zozi partner family."