Google Disses Cinco de Mayo, Yahoo, Bing & Others Don't

Today is Cinco de Mayo but you wouldn't know that by visting Google.com. You would however know it if you went to Yahoo, Bing or DogPile today.

Here are the logos from Yahoo, Bing and Dogpile:

Here is the Festival patios cordobeses logo from Google Spain, obviously not related to Cinco de Mayo:

Of course, there are complaints there is no Cinco de Mayo doodle from Google at Google Web Search Help.