the study: http://www.pnas.org/content/suppl/2013/03/07/1218772110.DCSupplemental/pnas.201218772SI.pdf
You Won't Like What Your Facebook 'Likes' Reveal
Have you clicked “like” next to “Bret Michaels” or “I Love Being a Mom” on Facebook?
Did you also click “like” next to “Austin Texas”?
Or maybe you clicked “like” next to “Never Apologize For What You Feel It’s Like Saying Sorry For Being Real,” because you were inspired by the quote sometimes attributed to Lil Wayne.
Then you’ve just given enough information to Facebook for someone to profile you as a likely drug-user with a low IQ whose parents divorced before you were 21.
e.g. of the table in the pdf :
High IQ Like:
The Godfather
Mozart
Thunderstorms
The Colbert Report
Morgan Freemans Voice
The Daily Show
Lord Of The Rings
To Kill A Mockingbird
Science
Curly Fries
LOW IQ like:
Jason Aldean
Tyler Perry
Sephora
Chiq
Bret Michaels
Clark Griswold
Bebe
I Love Being A Mom
Harley Davidson
Lady Antebellum
I wait here for an equivalent study about your traits based on the apps you downloaded.. apple, google and amazon have those data.
This TED talk is also incredibly fascinating on the subject: