The document discusses social media etiquette and its importance for careers and college admissions. It notes that there will be around 2.77 billion social media users globally by 2019, with 59% of Instagram users being ages 18-29. The document recommends only posting content that will be useful and appropriate over time, setting privacy settings, editing posts before sharing, and being aware that anything shared online can affect one's image and opportunities. Maintaining good social media etiquette is important for opportunities and one's online reputation.