An article I came across the other day there:
http://www.medindia.net/news/Depression-and-Social-Phobia-Fuel-Teen-Internet-Addiction-59145-1.htm
While I do spend an inordinate amount of time on the internet, I wouldn’t go as far as to say that I’m addicted to it. I don’t miss it at all when we go on holiday, and it doesn’t bother me too much if someone else is on the computer when I want to use it. However, I do think that people such as myself who are depressed and have social anxiety are far more likely to develop an addiction to the internet. It provides an environment where you can interact with others in a way which produces little or no anxiety, and in which you can create your own persona. It means that people cannot see you and that you are under less pressure/ have more time to think about what you want to say. You can chat to strangers anxiety-free, and even make friends online.
While I think the internet is mostly a good thing, and that it can certainly be a life-line for the socially phobic, it’s important that we do not overuse it or get carried away, as this could easily lead to addiction.