Estonian e-voting, complete with automatic voter registration

In Estonia, you would be.

Estonia was the world's first country to enable online voting in national elections. But how exactly does it work? Thad Hall posted a nice overview of Estonia's e-voting system today over on Election Updates. Here is the key passage:

In Estonia, when you turn 18, you are automatically registered to vote at your address at that time. In addition, the person obtains a national identification card that has both a photo identification component and a digital signature...