Mobile phone and internet rules
Personally, the way I was going to deal with kids & study etc was to buy a desk top computer. I have a lap top, but I want a desk top for the kids. They can have net access, but I can stop that at any time.
I agree that a diary & the net are very different. You don't get creepy men pretending to be 15 year old boys in a diary. You don't accidentally let out your address or party details to the whole high school/town in your diary. The Internet IS a dangerous place & I will not be risking my kids safety for trust & dd1 is already understanding this.
Mobile phone and internet rules
I've always thought that their moby's (when the time comes) will be switched off and handed over at 8:00 every night, and no computers in their rooms.
The way I see it, no one has access to them after that time.