Great write-up on OpenElections by Harvard's Nieman Journalism Lab
http://www.niemanlab.org/2012/09/new-york-times-washington-post-developers-team-up-to-create-open-elections-database/
http://www.niemanlab.org/2012/09/new-york-times-washington-post-developers-team-up-to-create-open-elections-database/