Adolescents spend a great deal of time in leisure pursuits, including hanging out with friends, playing sports, and playing or making music. Since the 1950s television viewing has taken up much leisure time and a generation later computer games became popular. The 21st century has seen massive change through information and communication technologies: mobile phones, computers, and tablets for accessing the internet. Social networking sites play a major part in teenagers’ lives with internet use trends continuing to change rapidly. ‘Youth culture—leisure pursuits and the cyberworld’ explains the important role of leisure activities in youth development, identity formation, self-esteem, and confidence, considering the opportunities and risks of online activities.