REFERENCE

Dictionary/Thesaurus
Webster | Oxford | One Look Dictionary | Thesaurus | Acronyms

Atlas and Maps
 Flags and Maps of the World | Map Machine | Aerial/Satellite Images | World Atlas & Geography Facts

Other
Encyclopedia.com | National Archives

Libraries
New York Public Library | Internet Public Library | Library of Congress | Library Servers

Books
Amazon.com | Barnes and Noble | Quatum Books | Yale University Press

Rare and Used Books
Advanced Book Exchange | Alibris | Bibliofind | Bookfinder

s