A very well-organized, neutral, and objective presentation of computerized voting issues, questions, and answers for those new to the subject has been assembled at this website:
http://www.votingmachinesprocon.org/ [1]
VotersUnite.org [2] has consistently produced some of the very best original research and outstanding public education materials of the election integrity movement. Click the link below to visit the VotersUnite downloadable factsheet collection.
Election Defense Alliance is a program of International Humanities Center, a nonprofit organization under Section 501(c)(3) of the IRS Code.
Links:
[1] http://www.votingmachinesprocon.org/
[2] http://www.votersunite.org/
[3] http://www.votersunite.org/info.asp