Map Share is a proprietary map technology launched by TomTom in June 2007. Map Share allows users to make changes to the maps on their navigation devices and share them with others. It allows drivers to make changes to their maps directly on their navigation devices. Drivers can block or unblock streets, change the direction of traffic, edit street names and add, edit or remove points of interest (POIs). Improvements can be shared with other users through TomTom Home, TomTom's content management software.