a recent talk from Ben Fry at the See Conference ("Conference on
Visualization of Information"), showing a lot of older & a few new visualization works. in addition, there are videos of talks from the performance artist Zachary Lieberman, science fiction author Bruce Sterling & visualization researcher Frank van Ham of the IBM Visual Communication Lab.
you will need to visit the See Conference video collection website to watch the talks, as it (unfortunately) seems the videos cannot be embedded in 3rd party websites.
there is also a recent post on informationandvisualization.de describing a personal impression of the conference.
image taken from the see.conference flickr stream.