Texas-based Ersys market research company now makes much of its demographic and geographic data available for free here with this handy tool. From the homepage of the Ersys database, users select a state and then choose from a list of cities and towns to view information on population, climate and pollution, politics, media, income, education, transportation, and much more. The demographics section, authored by Ersys, provides maps and tables. Other sections, such as media and politics, give links to the appropriate external sites. Says Ersys, "If you're looking to relocate, pick a new commercial site or just curious about the city you're traveling to, join us in exploring the following destination states and their respective cities."