To illustrate their arguments the authors use an original nationally representative survey on acts of political engagement, undertaken with Australian citizens. Additionally, through detailed interviews and analysis of their web presence they show how advocacy organisations use online petitions within their repertoire of strategic actions. Lastly, they analyse the kinds of policy issues that mobilise citizens on crowdsourcing platforms, based on a unique dataset of 17,000 petitions from the popular non-government platform, Change.org. They contrast these mass public concerns with the policy agenda of the government of the day to show there is a disjuncture and general lack of responsiveness to this form of citizen expression.