This chapter explores the political communication practices of a variety of non-party political organisations, including: Trade unions; Single-issue and corporate lobby groups; and Terrorist organisations. Trade unions may be viewed as 'subordinate' political actors in capitalist societies, because it is their duty and function to represent the interests of labour against those of capital. Pressure groups, unlike trade unions, comprise more or less broad cross-class coalitions of individuals, united in their readiness to act collectively in pursuit of a limited political objective. Terrorism can have significance as a communicative act only if it is trans­mitted through the media to an audience. The use of terrorism in New York and Washington, and Paris and Nice as in Omagh and other places, is likely to result only in a tightening of anti-terrorist activity by democratic governments and the erosion of whatever public support for the terrorists' cause may have existed.