Online political discussion 1 Discourse architecture, ideology, and democratic norms in online political discussion Deen Freelon School of Communication, American University, USA 4400 Massachusetts Ave NW Washington, DC 20016 Email: Freelon@american.edu Abstract Studies of political discussions online have been dominated by approaches that focus exclusively on deliberation, ignoring other equally relevant communication norms. This study conducts a normative assessment of discussion spaces in two prominent web platforms—Twitter hashtags and newspaper comment sections devoted to particular political issues—applying the norms of communitarianism, liberal individualism, and deliberation. The platforms’ distinct design features and users’ left/right issue stances emerge as significant predictors of normative differences. Keywords: normative, Twitter, comments, content analysis, newspaper, deliberation Bio: Deen Freelon is an assistant professor in the School of Communication at American University in Washington, DC. The final version of this preprint manuscript will be published in New Media & Society.