During the last three or four decades labourunion, research and advocacy networks have interacted with networks of anti-capitalist or alter-globalist social justice activists. These interactions have enabled the (self-)organisation of working people across production networks linking the Global North and South. Especially after the crisis erupted in 2007-8, the process has expanded to include networks of self-employed, unemployed, marginalized and increasingly radicalised knowledge and service workers. Online social networks such as Facebook, Twitter, and Google Plus, but also free, ‘libre’ and open source software (FLOSS), offer new experiences complementary to traditional forms of organization.