TED】アレクシス・オハニアン。ソーシャルメディアでスプラッシュを起こす方法（Alexis Ohanian: How to make a splash in the social media (アレクシス・オハニアン: How to make a splash in a social media) (【TED】Alexis Ohanian: How to make a splash in social media (Alexis Ohanian: How to make a splash in socia