Offline communities are most often bounded geographically, even if vaguely
– The process of communicating and building relationships online is different than offline. It takes a bit longer for deep connections to form but faster for weak connection to form and there is what I call digital body language instead of physical body language and it takes a while to understand and identify.
– Online, you may still not get the whole picture of someone because they they can still be relatively anonymous and you see them in a very discrete context whereas offline you are more likely to run into them in the grocery store, etc.
In many other respects, they are the same.
“Facebook has affected the social life and activity of people in various ways. With its availability on many mobile devices, Facebook allows users to continuously stay in touch with friends, relatives and other acquaintances wherever they are in the world, as long as there is access to the Internet. It can also unite people with common interests and/or beliefs through groups and other pages, and has been known to reunite lost family members and friends because of the widespread reach of its network. One such reunion was between John Watson and the daughter he had been seeking for 20 years. They met after Watson found her Facebook profile. Another father-daughter reunion was between Tony Macnauton and Frances Simpson, who had not seen each other for nearly 48 years.
Some argue that Facebook is beneficial to one’s social life because they can continuously stay in contact with their friends and relatives, while others say that it can cause increased antisocial tendencies because people are not directly communicating with each other. Some studies have named Facebook as a source of problems in relationships. Several news stories have suggested that using Facebook can lead to higher instances of divorce and infidelity, but the claims have been questioned by other commentators.”
My point of view, Online and Offline Communities are mixed nowadays. Social reality that people often use the online contact, friends in the network there are also some offline contact.
Hanging around online to teenagers, I think most of teenagers spend more than 3 hours hanging around online, in most cases, young people use online chat, read news, play games. Nowadays, if the young people to leave the network, perhaps they will not to know what to do. For myself, I think hanging around online is a rapier, benefit is more fast and convenient contact with people, and more fast and convenient get news. Disadvantage is big waste of time to some not necessary and meaningful things.