All day, every day, we are connected to the internet, putting most people at some level of risk for internet addiction. Problematic internet use can take many forms, including overuse of social media and addictions to online shopping, gaming, or pornography. Such behaviors can cause anxiety, depression, sleep deprivation, loneliness, and physical health problems. People can lose their jobs and families, and in a few extreme cases, internet addiction has directly led to the death of the addicted individual or a child in their care. This book is organized into three parts: Part I explores what internet addiction is, the many forms it can take, and the serious consequences it can have; Part II examines a number of controversies and issues, such as balancing the internet's benefits against its addictive nature; and Part III provides a variety of useful materials, including case studies, a timeline of critical events, and a directory of resources.