The notice of the wiki, published on the listserv of the American Association of Law Libraries Special Interest Section for Foreign, Comparative and International Law says, "Hazel Lord, Senior Law Librarian at the University of Southern California School of Law has been tirelessly working on a bibliography of published sources of English medieval legal documents (covering the years 600-1532). What she had thought originally would only be a few hundred sources, has blossomed into a list of close to 1,000 sources!"
She has created a wiki for this project. The wiki can be found here: http://emld.usc.edu/tiki-index
She hopes that you will take a look and participate.