To celebrate its 11th anniversary today Google has changed their logo to spell ‘Googlle’. That double ‘LL’ is not because they are changing their name but to promote their unofficial 11th birthday.
The exact birthdate of Google is unknown: Google last year celebrated its 10th anniversary on September 2 and according to Wikipedia, the company was founded September 4, 1998.
Google.com was registered on September 15.
Apparently Google thinks today is a good day to celebrate.