This article examines how, and to what extent, and how, people engaging in political talk in ‘non-political’ online discussion forums (focusing on parenting, personal finance and popular culture) – online lifestyle communities – leads to political (or personal) action or calls-to-action. The analysis is framed in the context of wider questions of citizenship, civic engagement and political mobilization. To capture everyday political talk amongst citizens requires us to move beyond the now widely analysed online spaces of formal politics. Instead, we take forward a new agenda for online deliberation and focus on online ‘third spaces’: non-political online discussion spaces where political talk emerges concerning lifestyle issues such as pare...