One in three children have been cyber-bullied, according to charity Beat Bullying.
They found that text messages, prank phone calls and nasty posts on social networking sites are all being used to bully kids.
The charity has set up a scheme to help using people called CyberMentors, which has been backed by Prime Minister Gordon Brown.
So what have you done to beat bullies?
Are there schemes in your school too? Have you helped other children get help?
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Your comments
"I came to England from the United States and I only spoke Hawaiian. I got teased and when a South African girl came here we both got teased. We stuck together, and told a teacher who sorted it out straight away. Now me and her both speak good English and we help other foreign students so they don't get bullied."
Gloria, 15, London, England
"When I first came to England a few rude people kept asking me hard questions, especially because they knew that I couldn't understand them. Now I can speak English well and when they ask me something I answer and then they feel stupid."
Agata, 14, London, England
"If you are being bullied you should tell someone who takes care of things like that, and try to stop your bully."
Sophie, 10, London, England
"I told my mum, which was the best thing to do."
James, 15, Surrey, England
"If you don't tell anyone, then they can't help you, so you need to tell someone straight away."
Poppy, 11, England
"If you are being bullied tell someone straight away, an adult or parent would be best, they will sort it out if it happens again. They might call their parents in to have a chat about the child's behaviour."
Faris, 11, Wales
"I was bullied by a girl in my class on MSN and I told my teachers and my headmaster and now me and the former bully are now friends. I say tell someone!!!"
Danielle, 10, Liverpool, England
"I was bullied for three years through phone calls and at school. I didn't tell anyone in case it got worse but one day he started using physical abuse. I had to tell someone and straight away it got better."
Lizzy, 12, Derby, England
"To beat the bully you need to stick up for yourself, don't be scared of anyone."
Rebecca, 9, Walsall, England
"I've never been bullied but the website looks like a good idea for people who have been."
Katy, 10, Cheshire, England
"Most people bully because they have had a hard time themselves, it's their way of getting attention. I know you might not want to, but if you are getting bullied you need to tell someone - don't suffer in silence."
Megan, 14, Wales
"You have to tell someone, also save all the messages you get."
Isabelle, 12, Cheshire, England
"I know how it feels - I was bullied for four years online since I was 10 and it took me ages to find the courage to stand up for myself and tell someone."
Sophie, 14, Croydon, England
"I got bullied at school and on the computer and I used to react to what they said which made it worse. If it happened to me again I would try not listen to them and ignore them. I would not go on MSN or my emails until it stopped. I would have no contact with them at all and I would tell my parents and head teacher."
Ella, 14, England
"I was verbally bullied at school by two girls in my class. I told my parents who told the teacher. Tell the teacher or parents/carers!"
Hannah, 10, Kingston Upon Thames, England
"I beat bullying by telling my best friend, then she came with me when I told my form tutor and it's never happened since."
Chloe, 14, Newport, Wales
"You should always face the bully and not be scared. If you don't do anything they will keep bullying you so tell the teacher or your parents."
Myra, 11, Coventry, England
"I used to get bullied and it was horrible. I told my mum and she told the school but, since the school was really bad, they didn't do anything. I moved school and made new friends though."
Hinna, 12, Surrey, England
"I think it is a good website and really helps people."
Jodie, 10, Essex, England
"I used to be bullied in nursery! But I still had my friends with me!"
Nur, 11, Athens, Greece
"You shouldn't keep it to yourself. You should tell someone. It makes you feel so much better and they will stop the bully from bullying you."
Dorothy, 12, Leicester, England
"You must tell someone. Don't let the bully win."
Amy, 12, Norwich, England
"I have been bullied quite recently and I didn't want to go to school so my nan and mum decided to put a stop to it by buying me a book. In it I wrote the things that had happened every day and showed them at the end of the week. They showed my head teacher and it hasn't happened again."
Abbie, 11, Birmingham, England
"I think bullying is bad because it hurts people's feelings and some people get picked on for no reason!"
Alanna, 12, Swindon, England
"Don't suffer in silence, tell someone. Don't let the bullies make your life unhappy."
Tiara, 13, Birmingham, England
"If someone bullies you, tell someone you trust - like your friends, teachers and family."
Moumi, 13, London, England
"If you get a message, text or email about anything bad do not delete it, show your teacher and family."
Tamanna, 14, London, England
"I don't have this problem in my school, but I think you have to speak to your teachers if you get any nasty messages or phone calls. Don't delete it, show it to your teacher and your family. Don't let bullies win!!!"
Emilyn, 13, London, England
"I think people take cyberbullying too seriously because if they do bully you on the internet or by text msg, etc, you can block them. In addition to this, you can tell them you will report them to the police. Being bullied in person is different, if you feel good about yourself then they can't affect you."
Minhaaj, 13, Watford, England
"People bully people who they know can't do anything back or who are younger than them."
Jemma, 13, Manchester, England
"I used to be a bully but everyone stopped being my friend because I bullied people."
Callum, 11, Manchester, England
"I try not to react in an aggressive way and I always tell my teachers, parents and friends what's going on. You can never just accept it in silence!"
Henrique, 14, London, England
"Don't suffer, tell someone!!!"
Frank, 13, Washington, USA
"If you are being bullied don't keep it to yourself, tell your parents and get them to speak to your teachers. If you don't you are having a hard life when you should be having a happy life. All bullies want is to wind you up so just don't talk to them and they will get bored. You don't deserve it - so TELL SOMEONE! ;) Hope I helped."
Lerissa, 13, England
"You need to tell someone before it gets worse."
Isabel, 10, Neath, Wales
"I was cyberbullied a few years ago. I retaliated and then it got worse. Then I ignored all of her emails and after we sorted it out together we were best friends!!!"
Brooke, 12, Hounslow, England
"When a bully picks on you by name-calling, try to laugh with the bully. The bully wants you to react by crying or getting mad."
Adam, 13, Hertfordshire, England
"If you get sent an email, text or phone call that you really don't like, don't delete it, show it to someone you trust."
Anna, 11, Reading, England