via Cartastrophe, No Swearing in Utah. A US map of Twitter swearing habits. Unfortunately dark color choice, by the way, but neat idea. From the downloadable PDF at the link:  Based upon an interpolated surface generated from approximately 1.5 million geocoded public posts on Twitter between March 9th and April 12th, 2010. These data represent only a sample of all posts made during that period. Isolines are based upon the average number of profanities found in the 500 nearest data points, in order to compensate for low population areas.