The Daedelus Project has just released a new article called "A New Disease is Born" which deals with the concept of Internet (and online gaming) addiction. You can read it here: http://www.nickyee.com/daedalus/archives/001494.php .
My only (public) comment: Watching TV for 30 hours every week is lame. Gaming online 30 hours a week is equally lame.
And I stick by my favourite term describing all these stories that I am collecting: Obsession.