A couple of links you might find interesting.
The first is Michael J Dowling’s White Paper on Publishing Options, in which he very clearly spells out the advantages and disadvantages of today’s publishing options. Check it out at: http://www.michaeljdowling.com/pdf/Michael-J-Dowling_Publishing-Options-White-Paper.pdf.
The second is my discussion with JW Najarian about ghostwriters and ghostwriting on his quite fascinating “Cause and Effect” site. Look for it at: http://jwnajarian.wordpress.com/2012/01/24/claudia-suzanne-professional-ghost-writer-on-learning-how-to-find-one-or-be-one/
What a great time to be in the book business!