The Environmental Protection Agency has released data from the third annual National Health Protection Survey of Beaches for the 1999 swimming season. Based on voluntarily returned surveys, the site offers information on water quality at 1,891 beaches in the US. Using an interactive map, users can find out if the water at a selected beach is being monitored, who is responsible for monitoring, and...

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...