Well, as far as some things go, I have.
I was addicted to Bejewelled Blitz on facebook, then they released Zuma Blitz which is my newest popcap addiction!
Chantelle got me back into Zynga's 'ville games. I don't really care that much for any of them apart from CityVille - reminds me so much of SimCity (which I used to love!)
I'm already thoroughly addicted to World of Warcraft, and I think I'm slowly getting addicted to DC Universe Online :( lol.
Oh and I'm a smoker - though I would love to change this in the right frame of mind.