Bolt, Twitter and taxpayers: winners and losers of 2012

LONDON (Reuters) - Every Olympic Games has its winners and losers, not just among the athletes and competing nations, who stand out from the crowd and take the praise or punishment as the host city steps into the limelight.

Here are 10 of those who came away from London 2012 with a golden glow and 10 others who might be wishing they had done things differently - or had never got involved in the first place.