From Childline.org.UK

http://www.childline.org.uk/index.asp

The main problems children contacted us about last year (April 2004 to March 2005) were: bullying (23% of calls); family issues (12%); physical abuse (9%); concern for others (7%); facts of life (7%); and sexual abuse (6%)

Bullying is not just a problem in the U.S.---Kids from all over the world are facing this issue every day!