According to a research study, most people are OK with virtual visits to doctors and using sensors to track their health.
American and British spies have infiltrated two fantasy games and collected users' data, the New York Times reports.
There are some posts on Facebook that are inappropriate to 'like.' So the company is exploring a 'sympathize' button.
Expanding into China would represent a "gigantic game-changer" for one social media site, CNBC's Jim Cramer says.