I run a minimal website from my iBook via Airport and it definitely goes offline when I close the lid. If I'm connected to my other iBook and close the lid, I lose the connection. So wireless Airport transmissions definitely stop. However, with the latest bluetooth update, BT is set to monitor for signals to wake from sleep. I've not had it wake when the lid is closed but it is possible I suppose that bluetooth is still active. What does anyone else think? Matt