To all that are interested:
There seems to be some interest in learning about chord progressions here, so I figure I will give my take on the subject. All of of what I have to say is purely my own impressions. I've been interested in chords from early on. And I've found making a conscientious study of them makes music more understandable and repeatable. I will post aural examples of what I'm talking about there. These files will be MP3 files, but they should be clear enough to hear the point I will be trying to make. I have also made the aural examles into Flash files, so you can see the chords change visually as you listen to the music. I hope you find this unique feature helpful. I will also go at the discussion by including several styles of music, instead of concentrating on just bluegrass. But since Bluegrass is what a number of people seem to play on the list, I will always have ample examples from that.

Scale Theory
Chord Construction
The Major Chords - I V I
The Major Chords - Adding the IV Chord
The Blues
Power Chords
Minor Chords - Six minor