Tools for working with Library.Link
Versa model for Web resources and relationships. Think of it as an evolution of Resource Description Framework (RDF) that's at once simpler and more expressive.
Amara3 project, which offers a variety of data processing tools. This module adds the MicroXML support, and adaptation to classic XML.
Python tools for BIBFRAME (Bibliographic Framework), a Web-friendly framework for bibliographic descriptions in libraries, for example.
Module for handling Internationalized Resource Identifiers (IRIs). Core of the Amara3 project, which offers a variety of data processing tools.
Data chef recipes, a grab bag for dealing with all sorts of data