http://www.mesa-medieval.org

"The Medieval Electronic Scholarly Alliance (MESA) is a federated
international community of scholars, projects, institutions, and
organizations engaged in digital scholarship within the field of medieval
studies. MESA seeks both to provide a community for those engaged in
digital medieval studies and to meet emerging needs of this community,
including making recommendations on technological and scholarly standards
for electronic scholarship, the aggregation of data, and the ability to
discover and repurpose this data."