The Demographics of Social Media. Looks at the Users of the Major Social Sites. We collected a lot of social media demographics based on actual user profiles, not just Web traffic. But knowing how you love to pass around your #infographics we thought we'd pull it all into one handy panel for you. And also knowing how you like deep-dive data, here's a more detailed tables of facebook, twitter and linkedin. Inspired by/to alltop @guykawasaki and AdAge (Matt Carmichael).