There's an interesting WebProtege project of MARC21-to-BIBFRAME data.[1] I'm working with Protege for some non-BIBFRAME data, but would LOVE to know more about how this was done. If you are the person or persons involved, please speak up. kc [1] http://webprotege.stanford.edu/#Edit:projectId=1033ee5d-9adc-4741-9598-0c1180812983 -- Karen Coyle [log in to unmask] http://kcoyle.net m: 1-510-435-8234 skype: kcoylenet