The Creative Commons has released "Creative Commons Awarded $800,000 from Arcadia to Support Discovery and Collaboration in the Global Commons."
Here's an excerpt:
CC Search—together with the Commons Metadata Library and the Commons API—will form the Commons Collaborative Archive and Library, a suite of tools for discovery and collaboration. CC aims through the development of this suite of tools to make the global commons of openly licensed content more searchable, usable, and resilient, and to provide essential infrastructure for collaborative online communities. The project elements will feature an index of every openly licensed and public domain work on the web (the Library); an API allowing developers to query the metadata library and to develop services and integrations for content in the Commons; and CC Search, a search engine that harnesses the power of open repositories and allows users to search across a variety of open content through a single interface.