These are the latest/pending acquisitions by social media giants Facebook, LinkedIn and the omnipresent Google. What does it all mean? Even the largest distribution channels need sticky content. Yes, I used that web 1.0 word 'sticky'. I could have said 'engagement is the new king.' Bottomline, advertisers need eyeballs to stay with content for a long period of time so they can sell more and more. Whether you're looking at a friend's photos, a colleagues' slides or getting social ads served to you, it's the same basic principle of being exposed to a message.