What we buy and read online is heavily influenced by our social identity. Digital marketers can use this influence to increase conversions and traffic; it's how Facebook built a network of 1 billion friends. Understand which signals trigger a reaction from your audience and how you can apply them on your site to boost your own network and convert more visitors.
Science vs. Humanities. Hmm. "makingfists: My physics major brother and I have this half-joking argument about once a month over whose major is better or does more for society, and he sent me this picture once as a peace offering."