Let them eat cake! Someone special celebrated a birthday over the weekend, and if you used the largest search engine in the world on Sunday it's likely that you saw their homage to themselves.
Google changes things up when they see fit, including their logo--in most recent times it was adorned with crop circles in celebration of H.G. Wells' birthday, and today it features an illustration of Confucius for what would be his 2,560th--and their date of birth. Last year the search giants reportedly posted their 10th birthday logo on September 2nd, so you can imagine the confusion that spread when their simple logo featured an extra "l" on Sunday the 27th.
If you check out Google's FAQ section, you'll find some reasoning behind the inconsistency: “Google opened its doors in September 1998. The exact date when we celebrate our birthday has moved around over the years, depending on when people feel like having cake.”
Sounds like reason enough, right? Besides, cake is good any day of the week.