My geolocation

Applications with geolocation features, like Google maps, can often determine the real-time, real-world location of your internet-connected mobile phone or computer, even if the device does not have built-in Global Positioning System (GPS) technology. Similarly, social networking sites like Facebook often store the last location from which you accessed them. They determine this information by looking up your IP address in a geolocation database and by analysing data that you provide through apps, geo-tagged photos, etc.