Back in April Constance Wiebrands and I delivered a webinar on behalf of the Australian National Data Service (ANDS):
The ANDS Seeding the Commons - Data Management Plan and Policy, Friday 27th April 2012
I've just noticed that the audio of this one a whole lot more audio and videos are available on the ANDS Channel on Vimeo
The ANDS site has a list of past and forthcming webinars on data management:
ANDS Webinars: Data Management Series