I’ve been trying out Foursquare recently.  It’s a social network that taps into location-based services.  It’s early days for Foursquare, but I think the idea has legs.  It works much like the other social nets; you find friends and connect with them online to share information and socialise.  But what’s cool is that you ‘checkin’ when you visit a shop, restaurant or other location and add your views on the experience.  And there’s a game component too.  Foursquare, or a network like it (Google Buzz?), will open up a myriad of marketing and sales opportunities for anyone targeting consumers once the community of users reaches critical mass.  Here’s a fun video that explains how it works.

Thanks to GIGAOM for the heads up on the video.