Episode 1 of SpinDoctor: Equipment, Fiber and Book Reviews for Handspinners has been posted and is available via iTunes (see link, top right, to subscribe). Or you can use the embedded mp3 player at the bottom of the post to download the file or just listen to it now. A couple of links to things I talked about:
The classic discussion of "Beginner's Mind" is Shunryu Suzuki's Zen Mind, Beginner's Mind.
There's lots of information about critical thinking here.
The listener's group on Ravelry is here.