This library is a .NET wrapper for the Google Maps API. It will allow you to query Google Maps for geocoding, directions, elevation, or places and will show you results on a static map. The documentation includes more information and code samples. This unofficial library is authored by Maxim Novak and licensed by the OSI BSD-2-Clause license.
Map mashup developers take note. Google has just announced that it has made several changes to the Google Maps base map, which now includes several new base layers as well as well as more detailed information.