The BBC has just launched an fascinating series on Radio 4, called the Secret History of Social Networking. In part 1 Rory Cellan-Jones
traces the roots of social networking from the counterculture of the 1970s through early bulletin board systems such as California's The WELL and the first networks on the World Wide Web, finding out how a geeky hobby became a mass phenomenon.
It lasts for half an hour and makes for very interesting listening.
