The following has been added to the Zotero Group for Ancient World Open Bibliographies and the Ancient World Open Bibliographies Wiki.
Provisional Bibliography for a New Edition of Aristotle’s Protrepticus
http://www.protrepticus.info/bib2013ii25.pdf
D. S. Hutchinson, University of Toronto, and Monte Ransome Johnson, University of California, San Diego
Updated February 25, 2013.
This 17-page web .pdf consists of two sections: primary sources (arranged by ancient author), with lists of editions and manuscripts, and 10 pages of secondary sources, arranged alphabetically by modern author and including articles and books in multiple languages. Those interested in Aristotle’s Protrepticus should also explore the site as a whole: http://www.protrepticus.info/.