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- Sufia (on GitHub) repository platform exemplified by Scholarsphere at Penn State
- Project Blacklight
- Apache Solr enterprise search platform, already used by both VIVO and Fedora
- Apache Camel routing and mediation platform used by Fedora 4 (see https://wiki.duraspace.org/x/mw8dB)
- W3C Linked Data Platform, also used by Fedora 4
- Linked Data for Libraries use cases
- Use Case 1 (annotations to create virtual collections,tagging scholarly information resources to support reuse), both using Rails gems
- Use Case 2 (linking Cornell Library catalog with VIVO, URIs in library records), using VIVO
- ActiveTriples
- Hydra RDF Working Group
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