Social Media Online social networks are a central communications tool and the primary source of news and information for many people. Historians place the birth of online social networking with the BBS (Bulletin Board System), where users communicated with a central computer and sent messages to other BBS members and also downloaded files and games. The next phase of online social networks evolved when CompuServe, AOL (America Online), and Prodigy were among the services linking people with similar interests. Today’s online social networks share many of the same basic principles by allowing members to communicate common interests, play games, and share photos, videos, and music. Some of these online social networks are for personal use, while others are for entrepreneurs, business owners, and professionals to share job-related topics. Research This: Compare the features of the top personal online social networks, and create a table listing the number of active members in the United States and worldwide, the number of years the sites have existed, the more popular features, and the amount of content, such as photos, news stories, and links, that is shared each month. What types of advertisements are featured in each of these sites? Which sites are marketed toward younger and older users? Then, research the online social networks used for business. How does their content differ from that found on the personal online social networks? How many companies use these sites as a recruiting tool? How many native languages are supported? How are professionals using these websites to find potential clients and business partners?