The final paper in our panel at AoIR 2013 is by Anders Larsson and Bente Kalsnes, looking at the Norwegian election on 9 Sep. Their work examines the use of Twitter by citizens, politicians, and journalists. One starting point for this were the #valg2013 and #valg13 hashtags, to identify what users are being mentioned in these hashtags - which showed that then-PM Jens Stoltenberg was @mentioned frequently but did not often reply, while the Greens party both sent and received many hashtagged tweets. Amongst the retweeters, one-off messages which receive substantial retweets can become prominent, but more frequently retweeted users tend to be celebrities (comedians, journalists, etc.)
A second approach was to examine the Twitter uses by some of the key party leaders. As it turns out, during the month before the election there was a strong focus on @replying, especially from the leaders of the smaller parties. Their communication is mainly with their own supporters - there are very few users who received @replies from two or more leading politicians (and these are largely journalists and other media figures, not everyday citizens).