Children and teenagers can be involved in danger when they are using the internet. They want to make more friends, so My Space, MSN and Bebo are very popular among them. However, they do not realize that there is potential danger around them. Ellie was followed by a predator¡ because her saying on My Space was found. Peter pretended to a 17-year-old teenager to chat with the children on MSN to achieve his sexual purpose. Moreover, James made the pornographic webcam gain some money. As parents, they should be aware of the danger and take responsibility for their children.