This paper examines diversity in online news with special attention paid to the role of different types of media ownership (meso level) and media systems (macro level). After identifying relevant perspectives and operationalizations of diversity, and discussing the economic implications of ownership and market conditions for diversity, the study tests four hypotheses with a content analysis of 1660 stories from 48 news sites in six countries (United States, United Kingdom, France, Italy, Germany, and Switzerland). Findings show that online news attains the highest levels of diversity (measured with three different indices) in national environments with strong public service media, and that even in the internet age, public broadcasters add considerably to the diversity of political news. The much discussed category of made-for-Web outlets (including the Huffington Post and Rue89) revealed considerable variety in ownership and escape simple explanations with regard to diversity.
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