Social networking is all about building online communities of people who share interests or activities. Social networking services allow the user to create a profile, do micro-blogging, to insert pictures, to link to websites and, in some cases, to upload video.
In addition to general social networking sites, there are quite a lot of specialized sites. These are sites for support groups and sites for specific groups to share knowledge. Social networks are being used by teachers and students as a communication tool. Many businesses are using social networking to build a brand image.
Currently (2009), the most widely used social networking sites appear to be Twitter and Facebook.
Twitter asks "What are you doing?" However, Twitter is widely being used to follow breaking news and share professional information.
lows you to post longer thoughts, to add links, to upload pictures, to email, and to IM (instant message).
Facebook asks "What's on your mind?" It is a more social site, but it also allows you to do more.
"A social network service focuses on building online communities of people who share interests and/or activities, or who are interested in exploring the interests and activities of others. Most social network services are web based and provide a variety of ways for users to interact, such as e-mail and instant messaging services."--From Wikipedia, the free encyclopedia.
WARNING! Everything posted on a social networking site is public and can stay around forever. People have lost jobs or not been considered for jobs because of inappropriate postings. Employers now routinely look at candidates' web presence and history. Students should be warned about putting inappropriate material on any Internet site.