VotersWiki is a community wiki dedicated to helping voters in a democratic society understand their options on their ballots. Many voters are not aware of the resources available to evaluate public servants up for re-election and the numerous unsung candidates that would like to be considered on a "write-in" ballot. VotersWiki is designed to bring these resources together and help voters in a democratic society make more informed decisions that are driven more by their own ideals and values and less on political campaign techniques.
VotersWiki would be world wide and would have a page for each ballot in each national/state/county/etc. election. Obviously significant oversight resources would be needed to ensure the wiki is not biased towards any one political party, candidate, or view.
WikiVote - however that proposal is designed to create ballots and allow users to vote, whereas VotersWiki provides supporting material to ballots that already exist.
VotersWiki.org (not registered) WikiBallot.org (not registered) WikiVote.org (not registered)