Here's a great read for anyone trying to milk every last drop of enjoyment out of the Olympics: a creative review of the Games by Creative Review (they're probably best-placed to do it, right?) taking in everything from the London 2012 logo, the Olympic torches and cauldron, and even the mini-Minis that raced around the Olympic stadium returning shots, hammers, and javelins to their burly owners.
There's some fascinating insight on the decisions behind each element: well worth a read for both creative professionals and - frankly - anyone with a passing interest on how the Games were put together so well.
As for me, I always loved the branding: any brand logo that is easily recogniseable independently of colour is a winner for me. And there aren't many brands that can claim to pull that off.