| Liker-Liker ikke: Samfunnsengasjement i en Facebook-tid B Enjolras, R Karlsen, K Steen-Johnsen, D Wollebæk Oslo: CappelenDam, 2013 | 166* | 2013 |
| Followers are opinion leaders: The role of people in the flow of political communication on and beyond social networking sites R Karlsen European Journal of Communication 30 (3), 301-318, 2015 | 126 | 2015 |
| Styles of social media campaigning and influence in a hybrid political communication system: Linking candidate survey data with Twitter data R Karlsen, B Enjolras The International Journal of Press/Politics 21 (3), 338-357, 2016 | 107 | 2016 |
| Echo chamber and trench warfare dynamics in online debates R Karlsen, K Steen-Johnsen, D Wollebæk, B Enjolras European Journal of Communication 32 (3), 257-273, 2017 | 98 | 2017 |
| A platform for individualized campaigning? Social media and parliamentary candidates in the 2009 Norwegian election campaign R Karlsen Policy & Internet 3 (4), 1-25, 2011 | 98 | 2011 |
| Candidate campaigning in parliamentary systems: Individualized vs. localized campaigning R Karlsen, E Skogerbø Party Politics 21 (3), 428-439, 2015 | 91 | 2015 |
| Fear of the political consultant: Campaign professionals and new technology in Norwegian electoral politics R Karlsen Party Politics 16 (2), 193-214, 2010 | 70 | 2010 |
| Political appointees in executive government: Exploring and explaining roles using a large‐N survey in Norway J Askim, R Karlsen, K Kolltveit Public Administration 95 (2), 342-358, 2017 | 55 | 2017 |
| Campaign communication and the Internet: party strategy in the 2005 Norwegian election campaign R Karlsen Journal of Elections, Public Opinion and Parties 19 (2), 183-202, 2009 | 48 | 2009 |
| Organisering av valgkampen-«tradisjonell eller moderne» R Karlsen, HM Narud I valgkampens hete. Strategisk kommunikasjon og politisk usikkerhet, 112-137, 2004 | 48 | 2004 |
| Obama's Online Success and European Party Organizations: Adoption and Adaptation of US Online Practices in the Norwegian Labor Party R Karlsen Journal of Information Technology & Politics 10 (2), 158-170, 2013 | 42 | 2013 |
| After the mass party: Continuity and change in political parties and representation in Norway EH Allern, K Heidar, R Karlsen Lexington Books, 2015 | 41* | 2015 |
| Online and undecided: Voters and the Internet in the contemporary Norwegian election campaign R Karlsen Scandinavian Political Studies 33 (1), 28-50, 2010 | 40 | 2010 |
| A turn to the right: the Norwegian parliamentary election of September 2013 EH Allern, R Karlsen West European Politics 37 (3), 653-663, 2014 | 33* | 2014 |
| Still broadcasting the campaign: On the Internet and the fragmentation of political communication with evidence from Norwegian electoral politics R Karlsen Journal of Information Technology & Politics 8 (2), 146-162, 2011 | 33 | 2011 |
| Does new media technology drive election campaign change? R Karlsen Information polity 15 (3), 215-225, 2010 | 32 | 2010 |
| Kamp om dagsorden og sakseierskap R Karlsen, B Aardal Det politiske landskap, Oslo: Cappelen Damm Akademisk, 2011 | 29 | 2011 |
| Party bureaucrats, independent professionals, or politicians? A study of party employees R Karlsen, J Saglie West European Politics 40 (6), 1331-1351, 2017 | 25 | 2017 |
| Valgkamp i flerpartisystem; aktualisering av saker og kamp om eierskap R Karlsen Tidsskrift for samfunnsforskning 45 (04), 611-635, 2004 | 23 | 2004 |
| Serving the media ministers: A mixed methods study on the personalization of ministerial communication TU Figenschou, R Karlsen, K Kolltveit, K Thorbjørnsrud The International Journal of Press/Politics 22 (4), 411-430, 2017 | 22 | 2017 |
