The other day was St. Patrick's Day and many of the search engines had logos up for the day. Here is a run down of many of them.
Ask.com took a simple approach:
Google.com went simple as well:
Yahoo! also went simple:
Cre8asite Forums also had a simple logo but we went extreme with changing our site theme.
Let's take a look back in history at what the search engines have done in the past.
All the engines were more extreme about the look for St. Patrick's Day 2004. For St. Patrick's Day 2005 Google and Ask.com both were more extreme than Yahoo. For St. Patrick's Day 2006 Ask.com changed their home page colors from red to green, Google went extreme green with their logo and Yahoo! went simple again.
Forum discussion at Search Engine Roundtable Forums.