A work group of the Health Libraries Network has created bibnet.org which is a bibliographic database of health literature. Members of the network are working on bibnet.org in a collaborative way and make it freely available on the internet.
bibnet.org - Bibliographic Database of Health Literature
Currently the database contains about 43'000 records, starting from 1979, from more than 400 journals. These data come from the library of Rudolfinerhaus in Vienna and Pro Senectute Library Switzerland. Further cooperating libraries are very welcome!