ChildLine: ChildLine is the UK's free, confidential helpline for children and young people. They offer advice and support, by phone and online, 24 hours a day. Whenever and wherever you need them, they'll be there. Call 0800 1111. They have a designated page for bullying issues that includes a new video about building up your confidence after bullying.
Direct Gov: Information for young people on cyberbullying, bullying on social networks, Internet and email bullying, bullying on mobile phones, bullying at school, what to do about bullying, and information and advice for people who are bullying others and want to stop.
EACH: EACH has a free phone Actionline for children experiencing homophobic bullying: 0808 1000 143. It's open Monday to Friday 10am-5.00pm