The research status of electronic word of mouth in the tourism sector was evaluated and a research agenda was formulated. Through bibliometric analysis, 1017 scientific articles indexed in Scopus between 2008 and 2021 were reviewed. Descriptive indicators, qualitative analysis of texts, and maps of social networks allowed to summarize the literature. Six research streams were identified: automatic classification of texts, content generated by tourists, eWOM valence, decision making, impact of eWOM on performance, and impact on trust. For future research, it is suggested to include topics such as elements that favor eWOM, effects of business attributes on eWOM, factors driving the generation of eWOM, changes in eWOM behavior and online reviews, and business management.