Geolocation is a service offered by the newest browsers to provide web services (like PennFoodTrucks!) with your approximate location on the earth. We then use that information to help you use the internet better. In this case, geolocation is used to find which trucks are closest to you. We recommend you use Firefox or Chrome with your wireless card on (even if you are currently wired to a network) for the best results. If you have a gps chip (like your iPhone or Android phone) that'll work even better!You should have see a message above that asks for your permission -- click Accept or Allow to be impressed.