As open innovation has developed over the past two decades, numerous academic studies, newspaper articles and blog posts have covered the motivating factors for sponsors of crowdsourcing programmes: innovate faster, connect with new experts, access diverse minds and elicit ground-breaking solutions. However, significantly fewer words have been devoted to the arguably more important side of the equation; the motivating factors for Solvers. Why do people enter Challenges? Commit their time towards tackling difficult problems for organisations? Send solutions across the internet when they can see they’re competing against many other similarly talented individuals?