Anti-Masonic Party - History of the faction which later helped form the Whig Party. gi.grolier.com/presidents/ea/side/antimapy.html
Constitutional Union Party - Information on the party formed for the 1860 elections. gi.grolier.com/presidents/ea/side/conunion.html
Historical Election Results - Presidential election results from 1789 to the present. gi.grolier.com/presidents/results/results.html
History of Political Parties - Brief history of the Democratic, Republican, Reform and Libertarian parties. archive.nandotimes.com/prof/edsvc/etc/parties.html
Progressive Party - Information on parties using this name led by Teddy Roosevelt, Robert LaFollette and Henry Wallace successively. gi.grolier.com/presidents/ea/side/progress.html
The Political Graveyard - The web site that tells where the dead politicians are buried. politicalgraveyard.com
Why Third Parties? - Whether their candidates win or not, America's third political parties are important and here's why. Article exmaines the history of third parties and their impact. usgovinfo.about.com/library/weekly/aa041600a.htm