Could you be an internet addict?.

I googled internet addiction as i wondered if it actually exsisted. It does.
Reading about it made me question how much we do rely on the internet, and could we live without it?. I couldn't live without it. I have a blog to write, and friend's to talk to on facebook.
So i rely on the internet, but am i addicted to it?. What would i do if i couldn't have the internet?. Does my life revolve around the internet too much?.
I don't know, but i do know that i can waste several hour's on it doing nothing.