Wilfried Dirksen maintains a comprehensive and frequently updated guide to election results and voting data . Other useful sites are the International Foundation for Electoral Systems , the Lijphart Election Archive , and the Klipsan Press's Election Notes . The US Library of Congress has put on-line over 100 of its Country Studies , each offering detailed historical, cultural and political background on a different country of the world. Each report also contains an excellent bibliography. Researchers interested in federalism may find this collection of federalism sites useful.
Maps are important.
The best collection of maps of the web is the University of Texas PCL Map Collection . Also useful is the University of Minnesota's links to maps in the news . For those interested in political geography more generally, this links collection is a useful starting place. The International Federation of Library Associations has compiled an excellent guide to sites of national governments ,and multinational organizations. The same organization also provides a useful guide to official statistics around the globe.