 The Internet, originally conceived in the 1960s and developed in the 1980s as a scientific network for exchanging information, was not designed for the purpose of separating information flows (Michener 1999). The World Wide Web of today was not foreseen, and neither was the possibility of misuse of the Internet. Social network sites emerged for use within a community of people who knew each other in real life – at first, mostly in academic settings – rather than being developed for a worldwide community of users (Ellison 2007). It was assumed that sharing with close friends would not cause any harm, and privacy and security only appeared on the agenda when the network grew larger. This means that privacy concerns often had to be dealt with as add-ons rather than by-design.