The Australian Partnership for Sustainable Repositories has released presentations from its Identifying Researchers workshop. Both PDF and MP3 files are available.
Here's an excerpt from the workshop's web page:
The issue of managing researcher and author identities is a significant one that has an impact on a range of situations including, but not limited to, scholarly communications. This is an issue not only for researchers who nowadays interact with multiple identity and security systems but also for scholarly communications where the need to accurately identify authors and describe their scholarly resources is increasing in importance.