I cannot believe ten years ago today was the day of such terror that hit New York and all Americans. Today, on September 11, 2001, is a day no one will forever forget. Everyone I know, remembers what they were doing, where they were and the events of the day.
To remember 9/11, this year, Google, Bing, Yahoo, Dogpile, Ask.com and other search engines have special logos, themes and messages to remember the day and the Americans lost that day.
Google has a small black ribbon with text that reads "Remembering September 11th" linking to a blog post.
Bing has a very nice home page theme:
Yahoo made their whole top bar black, never seen that before from Yahoo:
Ask.com:
Dogpile, they even change the O in their logo:
The search industry has typically done special logos or themes to remember the horrific day. Here is the 2010, 2009, 2006. I do not have the other years here.
Now, a lot of you ask why not a Google logo? Google does not do logos for sad occasions.
Finally, this is an image of the Google home page on 9/11 ten years ago, when many news sites couldn't handle the traffic of those all rushing to the internet to find out what was happening...
Forum discussion at Google Web Search Help & Google Blogoscoped Forums.