The document discusses feedback received from posting a trailer on four social media sites: YouTube, Facebook, Twitter, and Tumblr. Feedback was mainly from friends on Facebook, while Tumblr allowed feedback from non-friends through its "Ask" feature. YouTube received the most views globally, with most viewers being females aged 13-24 from the UK, though more Americans were expected. Feedback was more vague from strangers on sites like Twitter due to character limits, while those interested in media provided more in-depth feedback.