BiblioX is "an attempt to create a XML-based system for formatting bibliographic citations and references using XSLT. The recommended Document Type for storing bibliographic information is MODS, the Metadata Object Description Schema. Development is centered around this format, although examples in other formats are included for comparison." BiblioX offers (experimental) support for DocBook, MODS & TEI XML schemata.
Bibster is a Java-based system which assists researchers in managing, searching, and sharing bibliographic metadata (e.g. from BibTeX files) in a peer-to-peer network.
The advantage of the system is it provides the possibility to search on a distributed peer-to-peer network using Semantic Web technologies. It provides an easy way to share data with other researchers.