Hey, I'm a teenager. I'm 16. I have a myspace account. I log on about once a week. It's basically to be able to talk to my friends whom have either moved away or I have moved away from. That and to keep tabs on my little chicklets(my younger kids in 4H), make sure they're not up to no good. Personally, my mom*actually my stepmom, my mom disowned me b/w 8th and 9th grade*and I get along pretty well. We have our disputes, but honestly, she has only taken away my computer once, and that was only for about a week, for reasons I will not go into. Teenagers are capable of thinking on their own and getting along with their parents and or younger siblings! I know I'm different than most(in more ways than 1), but I've met kids who are in the same boat as your daughter DD, as well as HobbyChickener's daughter. Honestly, from a kid's point of view, back off for a bit. Shut off/limit her use of her cell phone, maybe only an hour a night? Or get her a track phone, that way it just shuts off after the minutes are used up, that way you give her the # of hours per month(saves on overage charges on YOUR phone), and if she uses them up, oh well. As for the myspace. Keep an eye on it. Get your own myspace account. Check in on hers. Do you know how often she's logged on? If it's only every now and then, make sure to check her blogs, comments, comments to other friends, status updates, etc. If you can get her password, I'm impressed, but she'll probably go and make another account that You don't know about. Limit her use of the internet. I didn't really ever have to be punished, because I was taught MODERATION from a very young age...except when it came to chickens...Limits, limits, limits, that's what I have to say. You give them a leash. It lets them wander a bit, but they can't stray too far. And make sure the punishment isn't TOO severe. That'll just make them mad, I was put on restriction from the phone*1st bf, biological mother's house* for 3 months, and that just made me mad, and talk when she wasn't home. If it were for a couple days, a week max, I would've been fine and gotten the point. Short restrictions and limits are a hell of a lot more useful than long, drawn-out, anger provoking ones. But yeah, from a teenagers point of view, that's what I have to say. And then there's my little sister...