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Here's an excellent on line reference library with globes, gateways and links worldwide.
http://www.eei.org/future/fuel_diversity/history.htm
Has good information and statistics on electric utilities, the history of power generation and alternative fuels
http://www.uspto.gov/patft/index.html
"This database now offers the full text of all US patents issued since January 1, 1976 and full-page images of each page of every US patent issued since 1790 through the most recent weekly issue date (usually each Tuesday).
"This is the source. It's easy to find patents back to 1976, harder for earlier dates.
This new and ambitious web site challenges visitors with answering almost any question. "Expert advice on
every history question."
U.S. Government Printing Office
http://www.access.gpo.gov/su_docs/
Find the location of the Federal Book Depository library near you.
http://tcsp-fhwa.volpe.dot.gov/
The people who build roads also do cultural and archeological impact reports on what they plan to cover with concrete. The TCSP (Transportation and Community System Preservation Pilot Program) offers grants for community initiatives related to transportation. Their library is extensive; if it rolls, you can read about it here.
These maps were drawn, by hand initially, when the Sanborn Company began a detailed survey of buildings in 1867. In an effort to establish accurate actuarial statistics, they measured and indexed commercial, industrial and residential sections of about twelve thousand towns and cities in the U.S., Canada and Mexico.
If your project is located on one of these maps, you are in luck. To find out, search for Sanborn Insurance Maps and then narrow the search by state or area.
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