The document discusses how Upworthy is able to generate massive social engagement by focusing on creating high-quality, meaningful content centered around important issues. It notes that Upworthy delivers over 31,000 social actions per post on average, significantly more than other top media sites, despite having a modest volume of content. The document advocates that brands can also benefit from collaborating with Upworthy by creating sponsored content that aligns with Upworthy's mission and focus on important themes, in order to reach large audiences and generate significant social sharing and engagement for their messages.