As a social worker, I have encountered several examples to support the above point. Social networking is very enticing, with a wide variety of sites and the opportunity to interact with others. When done in moderation (and with caution), it can be quite harmless. However, many users rely too heavily upon social networking, engaging in online conversations for hours on end, with the result that it becomes the center of the user's life. As a result, the user loses opportunities for meaningful face-to-face interactions with others, choosing instead to interact with online strangers who may or may not be genuine. I encountered one individual who began taking an inordinately high number of sick days from work, although he admitted that he was not ill; when confronted about this behavior, he admitted that social networking had become so important to him that he was willing to risk his livelihood so that he could spend every possible waking hour with "friends", none of whom he knew personally.