Rowling will not be suing George Lippert, author of a fan fiction 8th book in the Harry Potter series.  Rowling has stated that spin-offs are fine as long as they are not sold and it is made clear that she is not associated with the stories.  She also requested that they not contain racism or pornography. 

You can click here to see the Wikipedia entry on the Lippert book which is still hidden behind an elaborate website.  Wikipedia’s entry offers the passwords you will need to explore the site fully.