Social networks encourage discovery. If someone is interested in certain books, bands, recipes or ideas, it's likely that their interest will be catered for by a social networking service or group within a service. If users are looking for something more specific or unusual then they could create their own groups or social networking sites. Social networking services can help young people develop their interests and find other people who share the same interests. They can help introduce young people to new things and ideas, and deepen appreciation of existing interests. They can also help broaden users' horizons by helping them discover how other people live and think in all parts of the world.