Kevin Heisler of Search Engine Watch and I crossed paths on Monday night at a NYC Advertising Meetup. (Unfortunately, we didn't actually see each other.)
But Kevin blogs about what they discussed, which includes bar codes on print ads (which can tie in traditional media with tracking for online advertising) and audio/TV advertising.
Here's an example barcode:
None of these technologies has taken off, but Kevin Heisler says that this is all part of the Google Ecosystem, and you can evolve or die out. We've seen Google TV market ads about 9 months ago and taught you how to set up print ads, but this is a whole new ballgame.
Additional coverage is at Techmeme.
Do you think it will work?
Forum discussion continues at Search Engine Watch Forums.