To the uninitiated, social networking is changing the landscape of the Internet. Social networking is a place where people develop networks of friends and associates. Websites that use social networking allow you to connect with people of similar interests or hobbies. Popular websites such as Facebook and MySpace let you create profiles where you can post photos and information about yourself such as location, interests, etc. And other users can link to you and share information.
Think of social networking websites as highways connecting people of similar interests. The users of these websites generate content by communicating with each other. And networks are formed quickly by users linking together. There many different types (from aggregate to bookmarking) of social networking websites.