Google made this point of recommendations vs facts on a recent paper on their Q&A System: "Confucius and Its Intelligent Disciples: Integrating Social with Sear

Google made this point of recommendations vs facts on a recent paper on their Q&A System: "Confucius and Its Intelligent Disciples: Integrating Social with Search" http://research.google.com/pubs/pub36900.html http://research.google.com/pubs/pub36900.html