HBO’s Game of Thrones premiered on Sunday and many brands got in on the action with GOT-themed tweets, Facebook posts and more. Social media management company HootSuite was one such company that took advantage of the big night with its own self promotion of its services. "A Game of Social Thrones" uses the familiarity of the GOT intro and theme song with different social media giants as the "kingdoms." Pretty darn clever if you ask us.