In today's society, everybody has an opinion on ... well, just about every imaginable topic. With the help of blogs, Facebook, Twitter, surveys, comments, and posts, we can declare our opinions on everything from Whitney Houston's death to troops in Afghanistan to child-rearing to product reviews. We like things on Facebook, we retweet on Twitter, and we comment on blog posts, news articles, and video clips. These constant opportunities to share our opinions have caused me to wonder ... who do we think we are? Why is it that we even have an opinion about, let's say ... Whitney Houston? For the vast majority of us, we don't know her. We've never met her or held a conversation with her. We may have seen her in concert or in a movie or read about her in those oh-so-reliable tabloid magazines, but really ... Why would we ever presume we could voice a reasonable opinion about her? Yet post after post on news articles about her death proclaim lo...