Updated: 2013 Feb. 26
We have just posted the latest version of our "Provisional Bibliography for a new edition of Aristotle's Protrepticus": it is available here and at www.protrepticus.info (from the sidebar).
Please let us know if you notice anything that we are missing; we really appreciate all the help that readers have given us. Below the break you can see an outline of the contents of the bibliography.