I received this “test” from a friend over the weekend for a campaign to promote awareness of cyclists among car drivers in the U.K.:
 
http://www.dothetest.co.uk/
 
While it pertains to cycling safety, I believe the premise of the “test”, the phenomena of “change blindness” is relevant to our everyday business here at Organic.
 
Give it a try!
 
Here’s more on the background of the “test”:
 
http://www.tfl.gov.uk/corporate/projectsandschemes/roadsandpublicspaces/7599.aspx

Joe Lekovish