For studies using data from the US census, voting statistics, or any other spatially-referenced data, the tools permit researchers to group and map categories easily and in new ways or to aggregate data by user-defined classifications. The tools enhance GIS to make maps more complex, more visually dynamic, and more easily interpreted.
BACKGROUND: One of our earliest projects as members of the Electronic Cultural Atlas Initiative was the North American Religion Atlas (NARA), a historical GIS that allowed users to map U.S. religious censuses interactively. NARA was widely used in colleges and seminaries and served as the mapping engine for an 8-volume study of American religion, available for purchase through Alta Mira Press.
Watch this introductory video to learn more about DAAR, and visit the website (http://religionatlas.org) to try it for yourself!