Are there any use cases of social network-based Recommender systems?

question at Quora:

Are there any use cases of social network-based Recommender systems?
and
What is the currrent work going in the recommendation system?

My answers:
Synapse: the Match algorithm
http://onlinedatingsoundbarrier.blogspot.com.ar/2013/05/synapse-match-algorithm.html

Facebook
PAPER "Private traits and attributes are predictable from digital records of human behavior"
http://onlinedatingsoundbarrier.blogspot.com.ar/2013/03/paper-private-traits-and-attributes-are.html

OKCupid
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/07/okcupid-lied-to-users-about-their-love.html

Zoosk SmartPick
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/03/zoosk-smartpick-formerly-known-as.html

PlentyofFish
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/08/big-data-use-cases-at-plenty-of-fish.html
http://www.kdnuggets.com/2014/07/interview-thomas-levi-pof-online-dating-big-data.html

and some fresh papers like:

PAPER: Development of a group recommender application in a Social Network
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/05/paper-development-of-group-recommender.html

PAPER Improved Network-Based Recommendation Algorithm
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/09/paper-improved-network-based.html

PAPER A Personalized Recommendation System for NetEase Dating Site
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/09/paper-personalized-recommendation.html

PAPER: "Personalized recommendation based on overlapping communities using time-weighted association rules"
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/08/paper-personalized-recommendation-based.html

PAPER Evaluation and Deployment of a People-to-People Recommender in Online Dating
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/08/paper-evaluation-and-deployment-of.html

PAPER: A Novel C2C E-Commerce Recommender System
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/08/paper-novel-c2c-e-commerce-recommender.html

and
Some new and fresh PAPERS from The 37th Annual ACM SIGIR 2014 CONFERENCE
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/07/some-new-and-fresh-papers-from-37th.html
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/07/new-paper-recommender-system.html

Please remember:
Personality Based Recommender Systems are the next generation of recommender systems because they perform far better than Behavioural ones (past actions and pattern of personal preferences)

If you want to be first in the "personalization arena" == Personality Based Recommender Systems, you should understand HOW TO INNOVATE in the ................ Online Dating Industry first of all! 
WorldWide, there are over 5,000 -five thousand- online dating sites
but no one is using the 16PF5 (or similar) to assess personality of its members!
but no one calculates similarity with a quantized pattern comparison method!
but no one can show Compatibility Distribution Curves to each and every of its members!
but no one is scientifically proven!

The only way to revolutionize the Online Dating Industry is using the 16PF5 normative personality test, available in different languages to assess personality of members, or a proprietary test with exactly the same traits of the 16PF5 and expressing compatibility with eight decimals (needs a quantized pattern comparison method, part of pattern recognition by cross-correlation, to calculate similarity between prospective mates.)
High precision in matching algorithms is precisely the key to open the door and leave the infancy of compatibility testing.
It is all about achieving the eighth decimal!
With 8 decimals, you have more precision than any person could achieve by searching on one's own, but the only way to achieve the eighth decimal is using analysis and correlation with quantized patterns.
Without offering the NORMATIVE16PF5 (or similar test measuring exactly the 16 personality factors) for serious dating, it will be impossible to innovate and revolutionize the Online Dating Industry All other proposals are NOISE and perform as placebo. 
 

LIFEPROJECT METHOD: 100X better than eHarmony, not 100% better, 100 times better!

http://es.scribd.com/doc/223672375/LPMvEHARMONY-pdf 
  
What comes after the Social Networking wave?
The Next Big Investment Opportunity on the Internet will be .... Personalization!
Personality Based Recommender Systems and Strict Personality Based Compatibility Matching Engines for serious Online Dating with the normative 16PF5 personality test.