Fifteen-year-olds in the OECD spend about three hours on the Internet on a typical weekday, and more than 70% use the Internet at school. In OECD countries, 62% of Internet users participate in social networks and 35% use e-government services. About half of individuals in OECD countries purchase goods and services on line, and almost 20% in Denmark, Korea, Sweden and the United Kingdom use a mobile device to do so.