I gave a COGS Seminar Series talk here at Sussex. The title was «Defining Agency» where I presented the paper with the same title that I wrote together with Ezequiel Di Paolo and Marieke Rohde. I also included an example of the paper presented at ECAL2009 with Matthew Egbert. Thanks to Nicholas Hockins, there is a video of the talk available in Archive:
The video and the presentation slides can be downloaded from Archive or you can directly click on the picture above to download it (I am waiting for Archive to convert it into an online flash player).