Rumors of a Facebook "sentiment engine" analyzing aggregate user data, or a new form of the company's Engagement Ads that offer rapid polling to advertisers, have been flying around the web since the start of this week's World Economic Forum in Switzerland. The reality behind these rumors seems to be much less exciting (or creepy, depending on your perspective) than many people claimed - but we'd like to entertain some thoughts on just what Facebook could do with such a system.
Facebook is a place where 150 million people are conversing in real time, with people that they know, about the world around them. Those conversations are going on primarily in text. While most of the discussions around a