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Geography & Travel

Fodor's

www.fodors.com -  "Fodors.com  offers users ...destination content from Fodor's Travel Publications, original news and editorial features, real-time guidance and interactive forums."

Google Maps

http://maps.google.com/

Historic Maps of PA

www.mapsofpa.com/ -  800 maps from the 16th to the 21st century.

KAYAK

http://www.kayak.com/ - Find and book cheap flights, hotels, vacations and rental cars with KAYAK.com. Hotel, flight and travel deals. Search hundreds of travel sites at once.