Information on the history of Groundhog Day, and related resources.

Details the relationship between Groundhog Day and Chinese astrology.

Background of the holiday, along with wallpaper, trivia, and songs.

Official site of the Punxsutawney Groundhog Club. Provides information on events, members, media, and more.

Offering a history of the holiday, related links, and a chart of shadow sightings.

Questions and answers about Groundhog Day in Punxsutawney.

Canadian groundhog provides information on history, events, and related resources.