The Romanian Online Dialect Atlas (RODA) provides a digitized version of an extensive hard-copy atlas of the Crişana region of Romania (Stan & Uritescu, Noul Atlas lingvistic român. Crişana Vol. I, 1996, Stan & Uritescu, Noul Atlas lingvistic român. Crişana Vol. II, 2003). The set of tools we are now developing permits us to access data on a range of questions that would have been difficult to answer otherwise, and to visualize the results with dynamically generated maps.