Google has added the United States to Google Map Maker. Google Map Maker allows anyone to edit and add information to Google Maps.
Google claims that since the introduction of Google Map Maker the number of the world's population with accurate online maps of their neighbourhoods has doubled from 15% to 30%. Now users in the United States can correct errors on Google Maps with Map Maker and add detail to areas that are lacking proper map data.
In addition to opening Map Maker for the United States Google have added some new features for users globally. You can now get a street-level perspective on places with Street View imagery directly in Map Maker, see and edit all points of interest, and find exactly what you’re looking for with advanced search options such as displaying all railroad tracks.
Map Maker Pulse
You can view real-time edits to Map Maker with this Google Map. The application uses Google Maps and the Google Earth browser to show you in real-time where people are using Google Map Maker to update Google Maps.
Via: The Official Google Blog