Mark Zuckerberg's friend, Dropbox CEO Drew Houston, is joining Facebook's board of directors (FB)

· *Dropbox CEO Drew Houston has been appointed to Facebook's board of directors.*
· *In a statement, Zuckerberg said that "Drew brings valuable perspective to our board as a leader of a technology company with services used by millions of people and businesses."*
· *There has been significant turnover on Facebook's board of...