bonnie Erickson winter 2003
social networks: the value of variety, 2003
http://www.asanet.org/images/members/docs/pdf/featured/erickson.pdf
I found that people with more
diversified general networks were less depressed, and peo-
ple with more diverse contacts in the group more often felt
that participation had improved their health
Acquaintances make more subtle contributions in small,
invisible increments over the long run
Nielsen Wire, "Social Media Report 2012: Social Media Comes of Age," www.blog.nielsen.com, Dec. 3, 2012
In July 2012 Americans spent 74.0 billion minutes on social media via a home computer, 40.8 billion minutes via apps, and 5.7 billion minutes via mobile web browsers, a total of 121.1 billion minutes on social networking sites.
Keith Hampton, Lauren Sessions Goulet, Lee Rainie, and Kristen Purcell, "Social Networking Sites and Our Lives," www.pewinternet.org, June 16, 2011
47% of American adults used social networking sites like Facebook, MySpace, Twitter, LinkedIn, and Classmates.com in 2011, up from 26% in 2008.