This document discusses social networking sites and their rise in popularity. It outlines some key facts about social media usage, such as 9 out of 10 US internet users visiting social networks each month and over 1 billion users on virtual world sites in 2010. The document also lists some advantages of social networks, like easily keeping in touch with friends and family, and disadvantages, such as increased risk of online scams. Recommendations are made to address privacy concerns from apps and help businesses contact customers. In conclusion, social networks are seen as having a bright future but still need to deal with associated problems.