soc door

Social network aimed at building communities online of people with similar interests and / or activities. Communication is done through the internal mail service and instant messaging.
Also, there are social networks to find not only people of interest, but also of the objects of interest: web sites, listening to music, etc. In such networks, usually used folksonomy.
In the era of WEB 2.0 concept of "social network" firmly poured into the list of the most common and used Internet terms. However, not all users of the World Wide Web know that it existed long before the advent of the Internet.