Equestria Daily switches out banners at the top of the site regularly. This is a partial list.
July to September 2011[]
October 2011[]
November 2011[]
11-11-11
C-C-C-COMBO BREAKER!
December 2011[]
January 2012[]
1-19-12
Happy One Year Anniversary!
==February 2012==
March 2012[]
April 2012[]
May 2012[]
September 2014[]