A couple of podcasts of lectures I have given recently are available on line.
The first is a lecture on mobility and citizenship at the Oxford University Transport Studies Unit. This can be found at
http://podcasts.ox.ac.uk/prosthetic-citizen-forms-citizenship-mobile-world-audio
The second is a lecture on my work on Chicago (the book I am writing now) and is somewhat truncated and mostly about assemblage theory.
Tim Cresswell's blog...