Well i would say to just wait. Thats what i did, and i got one when i turned 13. But if you want one that bad, try to be on your best behavior do things your mom likes. Maybe after a while she'll eventually give in and say yes. It depends on your parents though. My parents just didnt want me to have one that early because i was to one.
you have to be over 13 to join facebook, if u are over 13 than your fine, your momma dnt tell u what to do if ur 13, ur mumma just scared bout u adding stranger people, u sneakly join ask.com so u can join fb
Personally I'm very anti-athority, and I don't like it when parents try to take control like that... but judging what happened to me on facebook, I wouldn't. It's so easy to get into a load of trouble by giving the wrong person all too much information.