Why does Twitter display where I used to live or work rather then my current location?
Some services, such as Google, Skyhook Wireless, and others generate a database of WiFi signals mapped to locations. If you move and take your wireless router with you, these services may not have the up-to-date information and will still associate your WiFi signal with your old address. Firefox and browsers using Google gears access these sorts of databases to guess your location, and then pass this guess on to Twitter. This means that if your location was never updated in the database, then Twitter will guess the wrong location for you. If you are experiencing this problem and need to update your location, please click here (Google Users) or here (Skyhook Wireless Users).