But there is a great divide here, it took a lot of digging just to find a few good podcasts (Stack Overflow, Venture Voice and Radio Lab), but they provide me less than 2 hours worth of content each week. With text, I wouldn't even be able to keep up with all the interesting content out there.
At this point I am fairly confident I have found most of the stuff I might be interested in listening to, so my interest now is to understand why more is not being produced, and if there is anything we could do to encourage production? Is there no demand for this? Are programmer types too shy? Why doesn't for example Steve Yegge just read aloud his blog posts and make them iTunes-subscribable?