Google changes into London Olympics 2012 animated characters and it is the honor from Google to Olympics games. I think it is one of the most memorable Google Doodle.
Previously I wrote more about Olympics games So you can check theme out here: Take A Ride of Olympics 2012 With Social Media, Infographic: The Education Olympics, Look At The Data, YouTube’s soft heart for Asian and Sub-Saharan Africa, Olympic Apps for your Blackberry Smartphones, Latest London Olympics 2012 Online Games at MiniClip, Infographic: The Evolution of Olympics Coverage, Google’s New Hub For London Olympics 2012.
Following a bid headed by former Olympic champion Sebastian Coe and the then Mayor of London Ken Livingstone, London was selected as the host city on 6 July 2005 during the 117th IOC Session in Singapore, defeating bids from Moscow, New York City, Madrid and Paris.
London will become the first city to officially host the modern Olympic Games three times,having previously done so in 1908 and in 1948.
Construction in preparation for the Games has involved considerable redevelopment, particularly themed towards sustainability.
The main focus of this is a new 200 hectare Olympic Park, constructed on a former industrial site at Stratford in the east of London.The Games also make use of many venues which were already in place before the bid.

