There are slightly over one billion people using Facebook every month, millions of likes and comments are being made daily to build one’s profile. While Facebook is a free service, one could only wonder how Mark Zuckerberg accumulated a net worth of billions of dollars. The reason for this has been the source of many ethical debates: Facebook sells your data. Companies purchase one’s personal data and uses it as marketing research. From the information provided on your profile, companies can determine your age, gender, nationality, likes and interests.