Introduction to Algorithms"Just as technology has made it easier to create a ton of stuff, it’s also created ways for us to sift through all of this information and find what you’re looking for. But that solution comes with a hidden cost. By tracking your behavior online, sites like Google, Facebook, Netflix and YouTube can learn about you and try and bring stuff specifically for you. That kind of guesswork is called ‘personalization’. Personalization algorithms are complicated math equations that use data collected about your online activity to shape your experience of the information you’re exposed to on the Internet. These algorithms look at your gender, age, location, online activity, such as what you tend to click on, how long you stay on the Web pages you visit and the kinds of things you share on social networks. These search engine algorithms also analyze your online shopping habits, the emails you write and the friends you connect with online. In the process, they create a digital fingerprint unique to you.” (description from the Checkology website)