Charles Stross (Scots SF author of renown) has just posted his "official" policy on fanfic. I just wish everyone else was so reasonable (see especially the blog he links to for a VERY anti-fanfic author)

http://www.antipope.org/charlie/blog-static/2010/05/faq-fanfic.html

Marcus L. Rowland
Forgotten Futures, The Scientific Romance Role Playing Game