摘要:Collectives bring people and their concerns together. In the twenty-first century, this assembly happens across different material and virtual spaces that, together, establish connective layers of society. A kind of politics has emerged that seeks new forms of communication and expression and proposes new modes of (co)existence. Riots in the suburbs of metropolitan areas, the repair of a public village centre, railway workers’ strikes, green activists’ protests, songs in support of tsunami victims… These are some examples of collective actions that unite people and places. But very often these kinds of events and social practices take place and fade away too quickly without visible traces of becoming collectives. This article focuses on the contingent spaces that enable collective action and provide possibilities for “peripheral” concerns and communities to become public. The concept of “diasporas” is widened to permit discussion of how emerging (international) communities make their voices heard through political events. Some theoretical concepts will be illustrated, using two examples of collective action on 1 May 2009 that demonstrate different initiatives concerning the global (economic) crisis.