A year ago I wrote about how big data, collected from social media sites, and machine learning was used to influence voting in the United States in "The man least likely to succeed in politics". Collecting data, and more specifically social data about each of us, has been described as the "new goldrush". Yet many of us are unaware of how technology is enabling the use (and misuse) of our personal data. As a technologist I find this area fascinating and evolving rapidly. This post Facebook sus...