For instance, Michel Morganella, a player on Switzerland's soccer team, was kicked out of the games for tweeting that Koreans athletes were "retards" and should "burn themselves." Greek triple jumper Voula Papachristou was also expelled for her tweet; she was left in Athens after her so-called "joke" about Africans in Greece.
Other athletes admit they have been distracted by the service. First there was the British diver Tom Daley who had malicious tweets sent to him; the 17-year-old who sent the messages was arrested and then released.
Then there is Australian swimmer Emily Seebohm who came in second in the 100m backstroke competition and placed some blame on social media distraction. "I don't know, I just felt like I didn't really get off [social media] and get into my own mind. I obviously need to sign out of Twitter and log out of Facebook a lot sooner than I did," she told the Sydney Morning Herald.
But amusement and interest, more than distraction, is what thousands of Twitter users have found on the service over the first four days. And it's likely that with almost two weeks left in the games, the 140-characther highlights aren't quite done yet.