Documentation:

• IFLA FRBR document (Feb. 2009)

Various versions of FRBR in RDF:

• FRBR core
• FRBR extended on vocab.org (This one was created in 2005 and not updated, so it may be assumed to be abandoned.)
• FRBR entities for RDA
• FRBRoo 
• FRBRer @ metadataregistry.org
• FRBRer (full ontology) (includes OWL)

Models

• IFLA FRBR Review Group
• Murray/Tillett paper model: Cataloging Theory in Search of Graph Theory and Other Ivory Towers
• Rob Stiles relationship model
• Ross Singer's commonThing properties
• SOBR, by Jakob Voss

Implementations

• Librarything
• Variations (Music testbed)
• FaBIO
• Scholarly Works Application Profile (SWAP)

Discussions

• Alistair Miles' analysis and suggestions on DC wiki
• Discussion on W3C LLD list "Disjointedness of FRBR Classes"
• October, 2011
• November, 2011
• Discussion on W3C LLD list "Non- and Partial FRBR Metadata"
• September 2010, starting post
• FRBR and classes ("Works in the age of mechanical reproduction")
• March, 2011 beginning post
• Aggregates
• IFLA Working  Group on FRBR Aggregates
• RDA-L discussion (scores of posts!) starting post
•  

Articles, Blog posts

• The FRBR blog
• Three of the Four FRBR Group 1 Entity Types are Roles, not Types.(PDF) by Renear, AH
• Allen H. Renear and Yunseon Choi: Modeling Our Understanding, Understanding Our Models: The Case of Inheritance in FRBR (95 KB PDF). In Grove, Andrew, Eds. Proceedings 69th Annual Meeting of the American Society for Information Science and Technology (ASIST) 43.
• Aggregate Model, (PDF) by Heilbrun Wiesenmueller (other writings here under "Working Paper")
• FRBR as Cake, blog post, Karen Coyle
• FRBR and Sharability, blog post, Karen Coyle
• What is a (FRBR) Work?, blog post, Karen Coyle
• Bringing FRBR down to earth, blog post, Rob Styles
• Faceted classification and FRBR, blog post, Bradley Allen 
• Rick Bennett, Brian F. Lavoie, Edward T. O’Neill. The concept of a work in WorldCat: an application of FRBR. Library Collections, Acquisitions, & Technical Services 27 (2003) 45–59

Background reading:

• Yee, Martha. "What is a Work? Part 1, The User and the Objects of the Catalog." Cataloging & Classification Quarterly 1994; 19:1:9-28.
• Yee, Martha. "What is a Work? Part 2, The Anglo-American Cataloging Codes." Cataloging & Classification Quarterly 1994; 19:2:5-22.
• Yee, Martha. "What is a Work? Part 3, The Anglo-American Cataloging Codes, Continued." Cataloging & Classification Quarterly 1995; 20:1:25-45.
• Yee, Martha. "What is a Work? Part 4, Cataloging Theorists and a Definition." Cataloging & Classification Quarterly 1995; 20:2:3-23.

Issues:

• Strictness of entities (classes?) and properties condemns FRBRer to a specialist community
• disjointness of classes
• disjointness of properties

     Note: discussion Dec. 2011 with Gordon, TomB and Kcoyle concluded that the strictness is the IFLA SG's intention. Not clear if "someone" should create an un-constrained model nor what that would look like.

• Incompatibility with mainstream bibliographic data (citations, bookstores, book clubs)
• Ross's linking terms commonEndeavor commonExpression commonWork commonItem
• SOBR, by Jakob Voss
• Conceptual nature of FRs vs. encoding as data models 
• Lack of linking to non-FRBR vocabularies  (DC, etc.)
• Acknowledge uses of FRBR concepts, albeit none using the IFLA RDF: LibraryThing, WorldCat, Open Library, VTLS
• Reconciliation of versions (above)