http://maps.unomaha.edu/peterson/funda/MapLinks/EuropeOverview/Maps.html
http://www.spartacus.schoolnet.co.uk/FWWarchdukeMe.jpg
http://www.history-world.org/world_war_one.htm
http://library.thinkquest.org/10927/leadwwi.htm
http://europeanhistory.about.com/od/worldwar1/p/ww1101.htm
http://www.historylearningsite.co.uk/america_and_world_war_one.htm
http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0097128.html
http://techcenter.davidson.k12.nc.us/group9/leaders.htm
http://www.firstworldwar.com/bio/index.htm
http://www.atlanteanconspiracy.com/2008/08/lusitania-world-war-i.html