Maybe it's time to go trunk diving for your unsaleable novels, collections, poetry or non-fiction titles. Google Books will now offer a Creative Commons License publishing option, according to the Inside Google Books blog. You can choose from a variety of Creative Commons licenses. You would sign up with Google as a partner (a free service) to promote your book. If you are a True Believer in this form of publishing, then you'd publish your best novels or other works this way rather than your trunk novels.

Of course, you can publish the book on your own under the same license; you'd use Google's service if you think that would increase readership of the book.