What You Don’t Know About How Facebook Uses Your Data

Facebook tracks even nonusers as they surf the web, and House members grilled Mark Zuckerberg, Facebook’s chief executive, about the practice during his second day of hearings.

Facebook meticulously scrutinizes the minutiae of its users’ online lives, and its tracking stretches far beyond the company’s well-known targeted advertisements. Details that people often readily volunteer — age, employer, relationship status, likes and location — are just the start.

Source: What You Don’t Know About How Facebook Uses Your Data – The New York Times