Brandon Mendelson (aka B.J. Mendelson) has debated the ambassador to Pakistan at the United Nations on the effectiveness of social media, written for CNN, the Huffington Post and Forbes, and has worked in a variety of capacities for not-for-profits and small businesses advising them of how to get to the truth behind using popular "social media" platforms. He is a heartless monster and hopeless romantic. He also wrote Social Media Is Bullshit which, despite the funny title, is actually backed up with three years of research. You should read it. His personal site is bjmendelson.com.