They Draw & Travel - World Map
They Draw & Travel is a collection of wonderful user submitted hand drawn maps.
The World Map lets you browse the maps submitted to They Draw & Travel on Google Maps. You can click on any of the map markers and view the hand drawn map submitted for that location.
One Day on Earth
On 10.10.10 One Day on Earth asked people around the world to create a video of their world. The goal of the project was to "create an open shareable archive and documentary film of the world on 10/10/10."
You can browse and watch the thousands of videos that were contributed around the world on this Google Map.
I only found this map yesterday and it has already become a firm favourite.
#rorschmap uses the Google Maps API to create a kaleidoscope for any location on the Earth. Essentially the application displays the Google Maps satellite view of a location and, using the same principle of multiple reflection that you find in kaleidoscopes, creates an animated Rorschach test effect.