- Brent Progecene - Guitarist & Guitar Lessons
- Alexander Mitchell
- C. F. Martin Guitar
- Eastman Guitars and Mandolins
- Deering Banjo
- Weber Mandolins
- Yorkville Sound
- Hohner Musical Instruments
- Brent's Guitar Scales Site
- Banjo Newsletter
- Beard Guitars
- Bluemont
- Common Ground
- Contradancers.com
- DC Bluegrass Union
- Mike Gellar
- Gettysburg Bluegrass Festival
- Lucketts Bluegrass
- Mark Johnson and Clawgrass
- Ned Lubericki, Banjo Player
- Mike's Master Classes - Online Jazz Lessons
- Howard Parker's Resonator Guitar Site
