the global use of instant messaging applications
ComScore. (n.d.). Press Release. Retrieved 6 June 2007 from http://www.comscore.com/press/release.asp?id=800
the use of instant messaging applications in USA
Nielsen//NetRatings. (2002). Instant Messaging Used by More Than 41 Million Home Internet Surfers. Retrieved 22 June 2007 from
http://www.nielsen-netratings.com/press.jsp?section=ne_press_releases&nav=1#
Nielsen//NetRatings. (2002). More Than 72 Percent of The U.S. Online Population Uses Internet Applications. Retrieved 22 June 2007 from
http://www.nielsen-netratings.com/press.jsp?section=ne_press_releases&nav=1#
Nielsen//NetRatings. (2001). MSN Gains Five Million Unique Audience Members in May. Retrieved 22 June 2007 from
ComScore. (n.d.). Press Release. Retrieved 6 June 2007 from http://www.comscore.com/press/release.asp?id=800
the use of instant messaging applications in USA
Nielsen//NetRatings. (2002). Instant Messaging Used by More Than 41 Million Home Internet Surfers. Retrieved 22 June 2007 from
http://www.nielsen-netratings.com/press.jsp?section=ne_press_releases&nav=1#
Nielsen//NetRatings. (2002). More Than 72 Percent of The U.S. Online Population Uses Internet Applications. Retrieved 22 June 2007 from
http://www.nielsen-netratings.com/press.jsp?section=ne_press_releases&nav=1#
Nielsen//NetRatings. (2001). MSN Gains Five Million Unique Audience Members in May. Retrieved 22 June 2007 from
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