USEFUL TOOLS
Calculate Duration Between Two DatesCalculate Inflation; future value of yesteryear's dollars.
MAP TOOLS
GOOGLE EARTH DESKTOP (Fully-Functional) - FreeGOOGLE EARTH INTERNET (The Basics) - FreeEARTH POINT - cool tools for Google Earth
CHICAGO RESOURCES
Chicago Street Renaming Document, 1909
Chicago Street Renumbering Document, 1909
Chicago Street Renumbering Document for Downtown (Loop) Addresses 1911.
Chicago Street Renumbering Document, 1909
Chicago Street Renumbering Document for Downtown (Loop) Addresses 1911.
ILLINOIS RESOURCES
GENERAL RESEARCH, NEWSPAPERS, ETC.
Digital Commons Network;100s of papers from worldwide universities & colleges.
Library of Congress z39.50 Gateway; Library Catalogs. [about z39.50]