Did you ever wonder why Republican whiners about voter fraud never reference this report by Project Vote?
Could it be it exposes their criminal intent to discourage voters and make them think their vote might not count anyway. If voters lose faith in the system, how motivated do you think they'll be to venture out to the polls?
The report is a PDF so I can't reproduce it here. It covers everything. You'll be glad you read it.
As for Republicans, please stop making your neighbors out to be felons just because they want to participate in the political process. Not everyone thinks about gaming the system like you do.