The Usenet group rec.arts.sf.composition, where people talk about writing speculative fiction, has had a number of discussions over the years on whether one should or should not web unpublished work. I offered my experience with my two most recent nonfiction books, both of which were on the web as late drafts well before they were published; the response I got from a number of posters was "fiction is different." Their basic argument was that publishers would be less willing to publish a work that had already been available for free.
My agent, whose opinion I respect, disagrees. Acting on her advice and my own inclination, have just put the entire text of Salamander
, my as yet unpublished second novel, on the web for anyone who wants to read it. Comments are welcome, either here or by email