I think on a whole I probably do, I think an hour a day is easily enough for anyone. I don't be on everyday but when I'm on I could easily spend 2-7 hours on it which is far to much.
I'm on off and on throughout the day. I can't sit at it for too long usually because I've got kids, but whenever I get a spare minute or two I go running straight to the computer.
I spend way too much time online... It's always on though, so I just get on it between everything I do....
I spend more time online than you do. I have an always on connection and shitloads of firewalls and ad-aware running when I'm not using it.