Here’s how to automatically check-in to FourSquare from C#. Yes, I did cheat with this for about a week. Apparently people were wondering how I was checkin in and defending my mayorships while I was out of the country. Haha. Anyway, here you go: static void Checkin(string venueid, double latitude, double longitude) { string result = HttpPost("http://api.foursq... "vid=" + venueid + "&private=0&geolat=" + Scatter(latitude) + "&geolong=" + Scatter(longitude), "myuser",...