groupme:

If, like many of our users, you’re on Foursquare, it’s easy to share your location with your friends on GroupMe. From any location page on your Android or iPhone Foursquare app, just press “Share”, then “by text message”.

Foursquare creates a new text message with the name and address of your location, and all you have to do is send it to your GroupMe. It’s that easy.

Try it out next time your group is trying to meet up!