There have been about 40 interviews so far. I've refined the process a good deal so that they actual interview and editing process is pretty quick and easy. But, increasingly, I'm looking to work with companies or conferences to gather content in bulk. I plan on getting another 40 interview over the next month before I launch the beta.
Also (I dont think I mentioned this in the post), I'm prototyping it by focusing on green jobs (and specifically cleantech and green buildings) in the bay area. I figure I need to narrow it down to make a prototype like this relevant. Again, thanks for the comments!