This is a really cool site I came across, some of you may already know some of you may have seen sites similar, please share you links and ideas!
What is Feng-GUI:
Feng-GUI empower designers, advertisers and photographers to effectively analyze Attention and Attraction in visuals.
Find out how people see your website, photo or ad and which areas are getting most of the attention.
This artificial intelligence service simulates human vision during the first 5 seconds of exposure to visuals.
http://www.feng-gui.com/