Does the country publish full voter registers at the national level online?
Marshall Islands
Answer
Yes, machine readable
Source
http://www.yokwe.net/index.php?func=display&module=News&sid=2833
Comment
The Marshall islands adopts a unique approach. Important government documents are issued in a separate proxy website. The 2013 proxy website is yokwe.net (see source), however it has stopped publishing documents. The current proxy website infomarshallislands.com does not provide a detailed voters list.