Tonight, the summer Olympics are kicking off in London with the opening ceremony.
To celebrate the day and also to inform users around the world about the event, Google has a special London Olympics Open Ceremony logo.
I'd expect the logo to change from day to day. This one on Google is specific to just the opening ceremonies. In the past, Google changed the logo from day to day, including the Vancouver Olympics.
Google is not the only company with a special logo. We have logos from Ask.com, Bing, and Sogou. I expect others like Dogpile, Yahoo, Baidu and more to have logos up later tonight or throughout the Olympics.
I'll try to keep adding more here as they are added, change and are updated.
Forum discussion at Google Web Search Help.
Yahoo now has their animated logo up:
Here is the Google London 2012 archery logo:
Google Men's Rings:
Google Table Tennis:
Bing USA Gymnastics Gold:
Google Shot Put:
Bing Road Racing:
Google Pole Vault:
Bing Indoor Sports:
Google Synchronized Swimming:
Google Basketball (interactive):
Bing Olympics Stadium:
Google Slalom Canoe (interactive):
Google Soccer (interactive):
Google Rhythmic Gymnastics:
Google Closing Ceremony Logo: