This document discusses internet culture and the online world. It notes that 71% of US adults use the internet and outlines some common online activities like email, search engines, getting directions, and finding health information. It also discusses social networking sites and some of the reasons people engage with them, such as staying connected with others who share their interests, gaining feedback and insights, and boosting their status by sharing information. The document provides some tips for engaging safely online, like starting simply, exploring interests, and using common sense.