This month's talk isn't web-related, but it is co-presented by Caroline Jarrett who is an expert in web form usability. She co-wrote an excellent book - Forms that work.
This month's session is about election ballot usability - a case study of usability work conducted following complaints about the 2007 Scottish Parliament elections.
Scottish UPA events
Forms that Work - free online resources and book promotion
Follow up - free report download
The talk was excellent, with many similarities to experiences of online usability testing. The scary thing is that bad usability is affecting our democratic right to vote. The number of ways participants were able to invalidate their vote was amazing.
The report is free to download from the Electoral Commission.
Usability of ballot papers - report by Effortmark and Uservision for the Electoral Commission