I've been working within W3C's Permissions & Obligations Expression (POE) Working Group as an Invited Expert. We have just issued our First Public Working Drafts:
|"one" by Andre Chinn|
|"poe" by 为民 王|
If you're interested in digital content, then I recommend looking at - and commenting on - the W3C POE drafts. The ODRL Information Model describes the foundational concepts, entities and relationships of ODRL. The ODRL Vocabulary & Expression describes how to encode the ODRL model in XML, JSON and RDF.
|"Use in case of emergency" by Katia Sosnowiez|
The POE WG has also published the Use Case and Requirements Note. I have contributed one of the Use Cases: News Permissions and Restrictions. Again, the Working Group is looking for feedback on - and contributions to - the Use Cases, so that it can derive a detailed set of requirements for the POE work.