AcuTab Publications
Sells a series of transcriptions by popular bluegrass musicians for banjo, guitar and mandolin.

Ridge Runner
Digital study recorders plus instruction videos for guitar, fiddle, mandolin, dobro, banjo and other instruments.

Encyclopedia of Bass Logic
Instructional text for the electric bass: technique, transcriptions, theory and rhythms.

Bouzouki Lessons by Sotirios Noussias
Instructional videos, cassettes and fingering charts.

Perfekt Noten Fingerboard Labels for Violin
These are labels that help you to reinforce correct finger positions on the fingerboard.

Dr. Horsehair Music Co.
Banjo recordings and instruction books by Bob Flesher in the modern-day clawhammer banjo or frailing style and the old-time minstrel banjo stroke style.

Harpress of California
Provides harp sheet music, instructional books, recordings and videos.

FretsOnly
Online catalog of various educational products for guitar, banjo, mandolin and violin.

Hugues Pomerleau Productions
Musician agency and music school: instructional books for guitar and bass and songbooks of international artists (in English or French).

Gordon Stobbe's Fiddle Music
Fiddle books, tune books, CDs and cassettes, old-time and stringband music.

Kenn Smith's Bass Lessons
It offers bass instruction by mail.

Bass Pro Tips
Instruction books and CD-Rom by bass player Sergio Mottura.

Fedor Violin Method
Description and ordering information for this instructional package (books and CDs).

Handbook for Cello Students
A book for cello students and teachers.

Lone Hand Western
Videos, tapes and books for banjo, bass, guitar, mandolin, vocal, recording and performance.

Ross Nickerson Music
Sells some Banjo books and CDs. Audio samples provided.

10aDay Stringwizards
Offering a set of videos for beginning orchestra players, such as violin, viola, cello, and bass.

Video Progressions
Offers some videos for bass and guitar covering different styles and levels.

Music Theory
Online and downloadable theory lessons for guitar and bass players. Information about the annual subscription.

The Stacy Phillips Dobro and Fiddle Page
Offering some instructional books and videos.

Banjo Teacher.com
Offering online lessons, videos, books, DVDs and accessories.

Andrew Pfaff: Mode Shapes for Bass
Offering this text for electric bass written by this instructor and performer in the NYC area.