Blogs
Hornmatters.com
Jeffrey Agrell's Horn Insights Blog
Travis Bennett "Bennett's Tenets"
Kerry Turner
Pip Eastop
Osmun Music
James Boldin's Horn World Blog
General
Check out The Horn Channel on Youtube - a series of educational videos on several playing-related topics, as well as the Horn Solos Channel, a collection of orchestral excerpt videos featuring the horn.
Guide to Business in the Music Industry
Embouchures.com
Hans Pizka’s Page
Hornplayer.net
The International Horn Society
John Ericson’s Horn Articles Online
Musical Chairs—Job Postings—Instrument Sales, and more
Nicholas Smith, Professor of Horn at Wichita State University
Orchestral Horn Excerpts—Sound files of major horn excerpts
Pip Eastop’s Page
Thomas Bacon’s Website
The University of Iowa Horn Studio - Excellent all-around site!
Equipment
Atkinson Horns
Berg Custom Horns
Brass Arts Unlimited
Chopsaver Lip Balm
Clebsch Strap
Dillon Music
Giardinelli
Greg Black Mouthpieces
Houser Mouthpieces
Horns A Plenty Horn Sales
Houghton Horns
Ion Balu Handmade Mutes
Kruspe Horns
Laskey Mouthpieces
Lawson Horns
Marcinkiewicz Mouthpieces
M/K Drawing and Bending—Parts and Materials for Horns
Natural Horns by Richard Seraphinoff
Osmun Music
PHC Mouthpieces
Patterson Horn Works
Paxman Musical Instruments
Pope Instrument Repair
Rocky Mountain Alphorns
Sorley Custom Horns
Stork Custom Mouthpieces
Thein Brass Instruments
Thompson Edition
Trumcor Brass Mutes
Wes Hatch Custom Horns
Warburton Mouthpieces
Wichita Band Instrument Co.
Woodwind and Brasswind
Zeagler Music—Located in Monroe, LA
Recordings
Amazon
Arkiv Music
Sotone Historical Recordings
Tap Music
Walking Frog Records
Sheet Music and Books
Birdalone Music
Hickey’s Music
International Opus
Manduca Music
McCoy’s Horn Library
Music Rara
Really Good Music—Music by Douglas Hill, Professor of Horn—University of Wisconsin-Madison
Robert King Music
Robert Ostermeyer Edition—Baroque Horn Music, other rare works
Southern Ohio Music Company
Works with Horn by Female Composers—Compiled by Lin Foulk, Assistant Professor of Horn, Western Michigan University Miscellaneous
Historic Brass Society
General|Equipment|Recordings|Sheet Music|Ensembles|Misc |