Here's the PLA's collection of Foursquare stalking calls. Foursquare is an application for smart phones that lets you share your current location with the public. We like to call businesses that people are at and tell them how dumb it is for them to share their location with the world. For more information on Foursquare stalking, view this post on it, listen to our podcast on the subject, and read the PLA Forums board called Let's Stalk People where you can post your own Foursquare stalking calls.
The following video contains some of our favorite Foursquare stalking calls, but there are even more calls below.