The RISKS forum has a collection of articles on voting machines in digest 23.01, 23.02, and 23.03: Grant Parish, Louisiana has an absentee ballot mixup in a close race, WinVote machines not counting one in a hundred votes (exactly what you'd expect from sophisticated ballot fraud; WinVote is run by former Diebold principals), also replaced machines in that election (earlier article) (Fairfax County, VA); the Boone County, IN overvote (MicroVote machines); a surprising risk even of voter-verified machines (Vote-Trakker machines, Southington, CT); two articles on the uncertified Diebold machines in Alameda County CA (earlier); risks of lever machines; incorrect instructions given on touchscreen machines in Pleasanton, CA; Irish Labour Party demands e-voting be suspended; and the Electronic Privacy Information Center's alert on the Congressional Research Service's report on Electronic Voting.
EPIC is also one of the sponsors of the conference, titled "Claim Democracy: Securing, Enhancing and Exercising the Power of the Right to Vote". It's in Washington, D.C. on the weekend of November 22-23.
In university round-up, we've got articles on the Diebold files from MIT (this article was on the front page of the student paper and brought me quite a bit of notoriety), Duke, UC Berkeley, and Harvard.
Gore Vidal weighs in on voting machines (scroll down).
I was also mentioned in the Washington Post on Thursday.
The EFF has archives of the Online Policy Group v. Diebold case; you should read especially their application for an injunction against Diebold.