What I made for dinner last night. A funny thing my son did. Commentary about the bad weather. A link to what Martha Atwood said about Twitter. Like so many of you, I post on social networks to express myself. Although being heard isn't on Maslow's hierarchy of needs, it should be. The flood of self-expression released by Facebook, Twitter, Instagram, tumblr, Pinterest and all the other platforms is evidence that millions and millions of people desire a voice. When brands tap into this energy (the bread and butter of social media), they see social engagement spike. For example, on Monday, Kohl's asked a simple question: "Classic holiday drink: eggnog or hot chocolate?" More than 2,600 fans jumped in with comments about their preferences.