December saw further map data releases for Google Maps, Microsoft Virtual Earth, and Yahoo Maps:

http://googleblog.blogspot.com/2008/12/street-view-year-in-review-and-whats.html

http://blogs.msdn.com/virtualearth/archive/2008/12/29/virtual-earth-data-release-december-2008.aspx

http://www.ygeoblog.com/blog/2008/12/16/yahoo-maps-new-international-coverage/