Trends associated with globalization work against the ability of unions to provide these items as effectively as before. In general, the effectiveness of the strike threat has declined, caused by the increased capacity of employers to relocate production to other plants or countries and to hire non-union replacement workers in a context of increased unemployment. The labour movement was quick to spot the potential of computer-mediated communication to aid workplace organization and connect workers directly with each other during struggles. Labour activists were well aware of potential dangers of bosses monitoring their communications. Ironically, unions started to use their websites to contribute to labour movement culture deemed archaic in mainstream media. Online technology has underpinned the significant expansion and capacity of the formal institutions of labour transnationalism embodied in Global Unions. There was broad agreement that computer-mediated communication was immensely valuable for workplace organization and labour mobilization.