They've written previously about how they consider Unsplash a valuable side project: http://blog.crew.co/how-side-projects-saved-our-startup/ http://blog.crew.c

They've written previously about how they consider Unsplash a valuable side project: http://blog.crew.co/how-side-projects-saved-our-startup/ http://blog.crew.co/how-side-projects-saved-our-startup/ From the wording in that blogpost, I would guess that they consider it part of their marketing spend.