The 1932 atlas of the historical geography of the United States, by Charles O. Paullin, has been digitized and is available freely online by the University of Richmond's Digital Scholarship Lab.
Over eighty years after it was originally published, Charles O. Paullin’s Atlas of the Historical Geography of the United States remains one of the most impressive and most useful atlases of American history. Containing nearly 700 individual maps spread across 166 plates, it addresses a broad range of issues. Beginning with a chapter consisting of 33 maps on the natural environment and a second containing 47 maps documenting the evolution of European and later American cartographic knowledge about North America, the atlas mapped an exhaustive number of historical topics: exploration and settlement of the continent, the location of colleges and churches, disputes over international and state boundaries, voting in presidential elections and in Congress, reforms from women’s suffrage to workmen’s compensation, transportation, industries, agriculture, commerce, the distribution of wealth, and military history.
This atlas is also available in print, located in MADGIC, on the 1st floor of the MacOdrum Library.
(Source: Canadian Cartographic Association)
Chris Olson, a senior technician analyst at Esri, created this historical map viewer of Toronto.
Use the map slider to view maps, fire insurance plans, and aerial photos from 1818 to 2012.
Olson has also created the Cleveland historic map viewer and the Pittsburgh historic map viewer.
(Source: Google Maps Mania)
The Statistical Office of the European Commission (Eurostat) has a collection of publications called Pocketbooks. They offer a small scale set of basic figures on a variety of topics. Some of them are re-issued each year so that you can compare statistics over time. they are all available in electronic format, free of charge on their website.
Some of the recent titles are:
Energy, transport and environmental indicators, 2013
Pocketbook on Euro-Mediterranean statistics, 2013
Agriculture, forestry and fishery statistics, 2013