Fan fiction is now mentioned in the most mundane of places. My office gets a subscription to "US News and World Report". I was browsing thru it while eating lunch, and read an article on Harry Potter - specifically, about people using Harry Potter to engage children in creative pursuits. 'Fan fiction' is mentioned in the middle of one paragraph (with absolutely no explanation as to what fan fiction is) as one of the ways children can actively respond to their interest in HP. No mention - fortunately! - of slash.