This document provides an overview of social media usage statistics and tips for using LinkedIn and Twitter effectively. Some key points: - Facebook has over 1 billion users, and people spend over 10 billion minutes on Facebook per day. Twitter has over 500 million users and 120,000 tweets are posted every second. - LinkedIn is focused on professional networking and has over 200 million users. Profile completeness, joining groups, and endorsements can help expand your network. - For Twitter, consistency in branding, posting engaging content with images and links, using hashtags sparingly, and engaging with others who comment on your tweets are effective strategies. - Case studies demonstrate both good and bad examples of using social media