While the name "Social Explorer" may conjure up images for some of a new and powerful social networking site, this site is actually a splendid way to learn more about your friends and neighbors. Created by a team of demographers and GIS experts at Queens College in New York, the Social Explorer website offers access to dozens of different interactive data maps including time series maps that chart the ethnic transitions that have occurred throughout New York and Los Angeles over the past decades. Before delving into the maps any further, first-time visitors may want to go to the "Getting Started" section, where they can read a brief introductory essay about these data maps and their basic objectives. Finally, visitors can also use the site to generate their own specialized maps and reports.