Opening ceremony of London 2012 saw more tweets than entire Beijing Games . British swimmer Tom Daley apologized via Twitter after fourth - place finish in synchro diving . Greek triple jumper Social - networking website Facebook has 1 million registered users . Swimmer Emily Seebohm blames social media preoccupation for failing to win gold .
Opening ceremony of London 2012 saw more tweets than entire Beijing Games . British swimmer Tom Daley apologized via Twitter after fourth - place finish in synchro diving . Social - networking website Facebook has 1 million registered users . Swimmer Emily Seebohm blames social media preoccupation for failing to win gold .