This week on Innovation Hub: why we laugh, why we cry, and why we’ve forgotten about one of the most important figures in American history. First, Contently co-creator Shane Snow describes the new world of journalism, sponsored by brands like GM and Pepsi. Then, cognitive scientist Jim Davies will tell us how evolution is to blame for us getting nightmares after watching The Walking Dead. And Noah Webster helped write the Constitution, developed American English, and was a major contributor to the first census. Joshua Kendall explains why basically everyone forgot about him. Plus, long before the backspace, a single mom made a fortune erasing our mistakes.