The portal Roman Law Resources (http://iuscivile.com/materials/biblio/), managed by Ernest Metzger, University of Glasgow School of Law, and mentioned by AWOL recently, includes links to a variety of bibliographies on Roman Law, which are listed below and entered individually into the Ancient World Open Bibliographies Wiki and Zotero Group for Ancient World Open Bibliographies.

DRANT: Droits Antiques
http://www2.misha.fr/flora/jsp/index.jsp
Center for the Documentation of Ancient Law, Paris.
Currently updated (2011).
This searchable bibliographic database contains approximately 56,000 entries on ancient law (including Greek, Roman, Persian, Near Eastern, and Egyptian, with 2000 more added annually. Coverage is very international and includes books and articles. The database allows searching by a large number of criteria. The interface is available in French, and (mostly) in English.

FoLIVM — Fons Litterarum Iuris Veterum & Medii aevi
http://www.rg1.jura.uni-erlangen.de/db_index.html
Hans-Dieter Spengler, Lehrstuhl für Bürgerliches Recht, Römisches Recht und Antike Rechtsgeschichte, Universitat Erlangen-Nurnberg
Currently updated (2011)
This searchable bibliographic database contains 76,000 entries, exclusively articles and book reviews, with international coverage.  As of 8/16/11, the search function returned a “file not found” error for every search tried.

A Bibliography on Women and the Family in Late Antiquity and the Early Middle Ages (2nd-7th c. AD)
http://www.nipissingu.ca/department/history/muhlberger/orb/arjava3.htm
Antti Arjava, University of Helsinki
January 17, 2005
This bibliography is organized alphabetically by author and contains monographs and articles in multiple languages.

Criminal Law / Droit pénal
http://www.lareau-law.ca/codification-Rome.html
Francois Lareau, Lawyer, Ottawa.
Last updated 28 December 2010.
Includes links to selected texts and French translations of texts, and a bibliography of monographs and articles, arranged alphabetically by author, with an emphasis on works in French and English.

Arbeitsmittel zu Digestenexegesen in Leipziger Bibliotheken
http://www.uni-leipzig.de/~jurarom/euro/litleip/dat/litleip.htm
Gero Dolezalek, Steffen Wunderlich, University of Leipzig
Updated since 2005.
This selected, annotated bibliography is organized by type of work (journals, dictionaries, encyclopedias) and is heavy on 19th century German publications.