The Winter Olympics in Vancouver yielded some great visualizations, with the New York Times work being amongst the top ones. They are showing off a map of the Winter Olympic Medals in the tradition of the Dorling cartograms. They also did a great job on a 3D map of the venues.
For those who want for worldmapper style maps, here is the relief: The worldmapper map of the actual medal count. The following is transformed due to a country’s total number of medals it has won.
A larger version of the map can be viewed by clicking on the image.