The following have been added to the Zotero Group for Ancient World Open Bibliographies and the Ancient World Open Bibliographies Wiki.
Latin Authors
Plutarch Bibliography
http://www.usu.edu/ploutarchos/plutbib.htm
Fran Titchener for the International Plutarch Society, hosted at Utah State University
Last updated January 5, 2011.
This is a comprehensive bibliography including books and articles in multiple languages. It is structured as lists of works organized alphabetically by author, in several large .pdf files.
Bibliography on Plutarch
http://www.utexas.edu/depts/classics/chaironeia/bibliography.html
Kenneth Mayer, formerly Dept. of Classics, University of Texas
No last update date; latest works included are 1997.
This is a selected but detailed bibliography, including books and monographs in multiple languages. It is structured with sections on basic works, editions, the second sophistic, individual Lives, religion, influence, and more; a few of the works listed also have annotations.
Ancient World Open Bibliographies 