References: 

References

1. Zickuhr K, Madden M. Older adults and internet use. PewInternet. June 6, 2012. http://pewinternet.org/Reports/2012/Older-adults-and-internet-use.aspx. Accessed September 5, 2012.
2. Social media. Wikipedia. http://en.wikipedia.org/wiki/Social_media#cite_note-19. Accessed September 5, 2012.