Will Facebook continue its reign atop the social hierarchy? Will businesses get better returns on their social media investment? Will your CEO finally learn to tweet? Here’s a look at the biggest social media trends set to unfold in the year ahead. Mobile social media usage continues to soar: In September, Facebook made a monumental–if little noted–revelation in a quarterly SEC filing: “[We] anticipate that the rate of growth in mobile usage will exceed the growth in usage through personal computers for the foreseeable future.” Read the full story at Fast Company.