I don't use any myself, (except the Zone) but I fear that in the future you may have to use them to promote your career, communicate, function in society at all. The problem with technology is you can't avoid it, and you can't choose not to use it, it becomes an essential.

You have to get on the grid to be noticed, to find out what's happening, even to protect yourself. You may soon be forced to go online just to pay your bills. I can't even imagine what being a student without a computer would be like. It's getting to the point now you can't get anything done by just calling somebody. And you know, every time you log on, someone will be listening, and someone will be billing you, and someone will be spamming your young ass.

How many times have you been watching the news and been told "for further information, log on to our website at..."
Living off the grid may soon be as difficult as living without a car, or a cellphone, or a TV. Hell, even a land line is useless without voicemail, and people don't just call you after work.

Rage against the machine, my friend. Before its too late.