One of my favorite bloggers, Rajesh Shetty had written an excellent blog-post last year, which describes how people react to your content. What I really like is the visualization and the manner in which it has been clustered.
If you are interested, please click this link to read the full blog.
themarketingblog.wordpress.com 
Wow! this one is ready good. It is knowledgeable as well. Not many people can think and write like this about online marketing.
nice one sir???
One thing I really like about this blog, is the due credit given to the original source always. Heading over to the actual post now! 🙂