http://www.flowtown.com/blog/how-internet-users-feel-the-need-to-belong
According to a Pew Research study, internet users appear to be more active in social groups than non-internet users. Not surprisinly, the groups are also using the internet to communicate with each other. Religious groups are the most common groups frequented by internet users, but groups with older members, like AARP, are dominated by non-internet users.
Read more: http://www.flowtown.com/blog/how-internet-users-feel-the-need-to-belong#ixzz1CzzMdzBI