Google made Doodle for the Olympic 2012 Opening ceremony, which going to take place today at London.
Updates : Google had made the Doodle for the 2nd day of the Game as well with game of Archery the theme for the game played today on Olympics. They have also provided the link for the updates of Olympics through Google with following tages "The Games have begun. Follow the London 2012 Olympic Games".
The link contains information about medal tally for upto 15 countries, some of the posts from Google+ and the host Google searches.
Note : Type "london 2012 medal count" in Google to see top 3 medal leader countries.