Google Takes a Cue from Wikimapia

Google released a new function for collaborative mapping in Google Maps yesterday. When creating a map in My Maps, the user has the option to select "Collaborate." The user can then open the map up to the public or invite other user to participate in constructing and editing the map. This recent addition to Google Maps simplifies collaborative mapping and opens up new possibilities for Web GIS and participatory GIS. Additionally, Google Maps added a terrain view this week.