Norway held a parliamentary election on September 9, 2013. The election provided for a pilot project, in which 250,159 voters in twelve municipalities were able to vote on the internet. The OSCE (Office for Democratic Institutions and Human Rights), the outgrowth of the Helsinki Accords, analyzes the entire Norwegian election in this 19-page report. For the analysis of the internet voting experiment, see pages 9-10.
The entire report is interesting. Norway uses proportional representation and that is described also. Norway uses electronic poll-books, so that voters can vote in any precinct. Individuals need not register to vote; the government prepares a list of all registered voters using data already available. Voters can vote as many times as they wish, but only their last vote counts. This reduces the fear that someone else is watching the voter cast a vote, perhaps because the other individual is attempting to bribe the voter. If the voter does feel intimidated, the voter is free to cast another ballot later, eliminating the first ballot. Thanks to Bill Kelleher for the link.