Some Voting Power Analysis Web Links
The Voting Power and Power Index Website, Antti Pajala, University of Turku, http://powerslave.val.utu.fi/. Lots of information about power indices including on-line computation and a large bibiography.
An interesting on-line power indices calculator by Kazuo Morota and Yashuaki Oisho, Department of Mathematical Engineering and Information Physics, The University of Tokyo http://www.misojiro.t.u-tokyo.ac.jp/~tomomi/cgi-bin/vpower/index-e.cgi.
Computer package for personal computers, Indices Of Power, for download, http://www.uni-konstanz.de/FuF/Verwiss/koenig/IOP.html
European Voting Games website by Jesus Maria Bilbao and Carmen Herrero which contains much information about the EU, voting power analysis, papers, computing and many links. http://www.esi2.us.es/~mbilbao/eugames.htm
The mathematics of voting power: an introduction to Banzhaf power indices, by Bjørn K. Alsberg. http://pcf1.chembio.ntnu.no/~bka/div/MAKT/Powerweb.htm
Banzhaf Power Index by Mark Livingston, http://www.cs.unc.edu/~livingst/Banzhaf/. Much information about the Banzhaf index and links.
Voting Power Project at LSE http://www.lse.ac.uk/Depts/cpnss/projects/vp.html.