GIS for History
http://www.gisforhistory.org/
Interactive GIS maps and lesson plans for teaching history using GIS

GIS for Humanities Research
http://library.stanford.edu/depts/gis/ppt/HumanitiesDemo.pdf
PDF lesson on humanities research

Great Britain Historical GIS
http://www.gbhgis.org/
Explains the GBHGIS and Historical GIS in general

Guide in Using GIS in Historical Research
http://hds.essex.ac.uk/g2gp/gis/
An online digital book by Ian Gregory of the GBHGIS

Historical Atlas of Canada Online Learning Project
http://www.historicalatlas.ca/website/hacolp/
Maps and research data created for the Historical Atlas of Canada Project is available online for educational purposes

Historical GIS 2008
http://availableonline.wordpress.com/2008/01/10/historical-gis-2008/
Forum for Papers/Historical GIS Information-Blog

Visualizing Urban History Using GIS
http://gis.esri.com/library/userconf/proc02/pap0549/p0549.htm
Online research paper