There has been fabulous attention paid by the news media to the photographs of 3rd-order and 4th-order rainbows published in the 1 Oct. 2011 Applied Optics feature issue on light and color in the open air.
OSA Press Release: http://www.osa.org/About_Osa/Newsroom/News_Releases/Releases/10.2011/Photos-Prove-Triple-Rainbows-Exist.aspx
A selected list of some resulting news stories:
http://www.newscientist.com/blogs/shortsharpscience/2011/10/third-and-fourth-order-rainbow.html
http://photoblog.msnbc.msn.com/_news/2011/10/05/8173218-whoa-its-a-quadruple-rainbow
http://www.bbc.co.uk/news/science-environment-15197774
http://www.physorg.com/news/2011-10-myth-reality-photos-triple-rainbows.html
http://news.yahoo.com/quadruple-rainbow-photographed-first-time-201004833.html
http://www.sott.net/articles/show/235916-Quadruple-Rainbow-Photographed-for-First-Time
http://www.sciencedaily.com/releases/2011/10/111005111001.htm