SAN FRANCISCO, May 25: Amazon is once again shaking up traditional publishing models. This time, it’s giving fans a chance to add their own personal touches to their favorite fiction – and get paid in the process. This week, Amazon.Com Inc announced “Kindle Worlds,” which offers aspiring writers an opportunity to pen their own takes on franchises in books, TV, movies, even games and comics. The world’s largest Internet retailer plans to license content, then accept submissions online that may then be sold through its Kindle ebook store. (agencies)