perception
How Observant Are You? Paid Members Public
Lovely idea, lovely execution, and a great example of viral marketing: [Via [Open](http://open.typepad.com/open/2008/03/awareness-test.html)]
Lovely idea, lovely execution, and a great example of viral marketing: [Via [Open](http://open.typepad.com/open/2008/03/awareness-test.html)]
