The Blogging Times has the longest list of attendees that I've seen anywhere. I had to scroll no less than 22 times to hit the bottom of the page.
I've heard of at least a third of the people on the list, but wow there's a lot of people involved. It's especially gratifying to see that there are people on the list who aren't podcasters but are merely curious about the whole thing. That bodes very wel for the future of this crazy thing we're riding on. Check the list.