The story

Headlines proclaiming that G-20 activists and police are following each others' activities on Twitter, Facebook and other social networking sites may give one the impression that a new age of surveillance and political activism has dawned.

But activists' use of technology is nothing new. Though Twitter and Facebook might be today's must-have gadgets in campaigners' toolboxes, some say they're simply the latest chapter in a long tradition of activists' use of technology to champion change.

University of Manchester political philosopher Martin O'Neill, who works on equality and social justice, told CNN that activists have a reputation for being early adopters of technology. Read full article »

Mark Tutton and Olivia Sterns contributed to this report.

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