The document provides an overview of teen internet use, highlighting that 93% of teens aged 12-17 go online, primarily from home or school, and their ownership of mobile phones has significantly increased over recent years. It also discusses teens' communication habits, with a strong preference for face-to-face interactions and texting, while detailing their use of social networking sites, with 65% of online teens maintaining profiles. Additionally, the document notes that young adults also engage heavily with online health information and highlights emerging trends in mobile technology and social networking behaviors.