1. Information Please Almanac
    This is the online version of the Time Almanac. It is a comprehensive reference source that "allows searching along with the contents of an encyclopedia, a dictionary, an atlas, and several almanacs containing statistics, facts, and historical records."
  2. Guinness Worlds Records
    The Guinness Worlds Records site contains "selection of records found in the Guinness World Records database."
  3. The Old Farmer's Almanac
    This site contains "astronomical events, weather conditions and forecasts, recipes, and gardening tips."