I've put together a few posts about the fraternity and sorority members who are competing in Sochi.
http://wp.me/p20I1i-1qu There's also one linked to it with the names of fraternity men who have won in past winter games and another about the sorority women who have competed and/or won as well as the Greeks on the ground. And if you know of others I may have missed, please let me know. Thanks.