Aly,
As an older sister of many teen siblings, I would first say what a few posters have said - obey your mom

. She has your best interests at heart, and honestly, her concern is well-founded. You don’t want to ruin a relationship with your mom over something that is not necessary for you to grow up normally and live. If you’re looking at myspace when she has told you not to, it is a sin because of disobedience. Believe it or not, parents are wiser than we will ever think as teens. If I had listened to my mom many, many times throughout my teenage years, instead of considering her ignorant, it would have saved my soul from a whole lot of sin, and it would have kept me from making even worse decisions in my life down the road. I’ve tried to get my younger siblings to understand this, because, looking back, I can see all the times she was right and even if she wasn’t, it wouldn’t have hurt me in the least to just obey. My mom doesn’t let any of my teen siblings to have a myspace. When you’re out on your own, you can then do what you want.
Also, myspace is not bad in and of itself, but it does have a lot of bad content on it. Having pictures of girls wearing skimpy clothing and kissing eachother is not good. These girls may just be joking around, but it doesn’t make it any less dirty. How many of these girls are leading teen guys (and others) to lust? And if these guys are lusting and possibly sinning in other areas, they could have a tendency to objectify girls - make them feel like a piece of meat, instead of treating them with the upmost respect. When you come to the time where you are dating, especially when you’re at the age of marrying, you’ll find that good men are not always so easy to find. Why? Because they’ve been caught up in what society says is “cool” such as immodest pictures of girls. They haven’t been taught or lived chaste lives and then they treat you like you’re not worth anything. You can do your part, by not looking at these things, and if you are friends with girls who do this, to lead by example and possibly talk to them about dressing modestly. Would you rather be called “beautiful” and have a guy look you in the eyes when he’s saying it, or called “hot” and staring at your chest as if you’re not a real person? Those kinds of pictures are going to get the “you’re so hot” where as the girls who dress modestly are going to have a guy who respects her and loves her, who thinks she’s beautiful and not just because she is on the outside. The guy who respects a girl is going to want to walk to the ends of the earth and back for her, whereas the guy who just likes a girl’s body is going to take what he can get from her and then leave.
I’ve been on both sides of the tracks, and am now married to a man who loves the fact that I dress modestly. He tells me every day that I am beautiful and how much he loves me more each day. He showers me with compliments and makes me dinner when I’m tired, or massages my swollen feet (because I’m pregnant). He watches chick flicks with me and plays board games and would rather spend time doing those things than the things he loves (computer games and action movies) because he’s spending time with me.
So, basically, what I’m saying is that, while myspace is not bad, it does promote many bad things that lead to even greater bad things, which you may not see right now. Believe me, it’s worth it to spend your time elsewhere

. Hope this helps!