Most people with gambling problems do not seek treatment. This may be because of barriers to seeking treatment, such as stigma, costs, or lack of time. Internet-based treatments may remove some of these barriers. This article is important because it analysed studies on internet-based treatments for gambling problems. The authors found 13 studies that met their criteria. These studies used a variety of different treatment techniques. Overall, these studies show that internet-based treatments greatly reduce gambling symptoms. They also somewhat reduce gambling frequency and money lost on gambling. Thus, internet-based treatments hold promise as effective treatments for problem gambling.