A source, which I’m unable to verify, claims that Foursquare, the ubiquitous location-based social network is about to buy Postmates, a food-delivery service, similar to Caviar, which was bought by Square this week.
It would mark a smart expansion of revenue streams for Foursquare, from directory/social network. Adding a service with real value is an interesting way to retain users, and earn some money in the process. There’s always the risk that it distracts them from their core business model though.
That’s all I know. I’ll update this if I learn more, or if I find evidence to the contrary.