The Lightning Talk Showcases are a fun, fast-paced afternoon event filled with 5-minute lightning talks in rapid succession on a range of topics. Wikimania Nairobi will have two Lightning Talks Showcase sessions to highlight some of the most compelling concepts and powerful thinking developing across the Wikimedia Movement. Read more at: https://wikimania.wikimedia.org/wiki/2025:Program/Lightning_Talk_Showcases.

This session will present the results from a research where we analyze the concentration of media references in Chilean political articles on Wikipedia between 2020 and 2025. Using a quantitative methodology, we examined the five most cited media sources across 100 selected articles to identify patterns of media hegemony versus alternative or independent sources. This pattern reflects the structural context of Chile’s media ecosystem, marked by the hegemony of a few conglomerates. Although Wikipedia follows strict verifiability standards, diversifying hegemonic sources is essential to foster a more plural and democratic collaborative knowledge. The session will discuss the implications of media concentration and propose strategies to enhance source diversity on Wikipedia.