BlueSpray is a GIS program that was created by Jim Graham and it contains a powerful tool to help visualize the error associated with projections.
Download Dr. Graham's GIS software Bluespray
SchoonerTurtles is a small company that provides services and products to resolve tough problems with spatial data. This includes working with large spatial data sets and spatial analysis problems. SchoonerTurtles was founded by Dr. Jim Graham who is a professor at Humboldt State University and a research scientist with Colorado State University.
Bluespray, a revolutionary Geographic Information System (GIS) for acquiring, processing, analyzing, and publishing geospatial information. BlueSpray is currently in beta and while you can download it, you'll need to obtain a pass code to test it. Please contact Jim at james.graham@humboldt.edu.