on may 22, 2013, the online retailer amazon.com established a new publishing service, kindle worlds. this service enabled fan fiction stories of certain licensed media properties to be sold in the kindle store with terms including 35% of net sales for works of 10,000 words or more and 20% for short fiction ranging from 5,000 to 10,000 words. however, this arrangement includes restrictions on content, copyright violations, poor document formatting, and use of misleading titles.