International Tuba Euphonium Association - Professional organization lists scheduled world and regional conferences, employment, links to scholarly journal articles, and pedagogical materials as PDF files.
Baritone Horn Page - History, care and maintenance,and practice and playing tips.
Baritone or Euphonium - Article on the differences, with a nice comparison chart, pictures, and dimensions of popular brands and models.
The "Big Brass" Bash - A non-profit organization dedicated to bringing the tuba and euphonium community together in an annual two day festival.
David Werden Publications - Publisher of books for euphonium and tuba. Listings of music and available downloads of ensemble music including the euphonium and tuba.
Euphonium and Tuba Lecture - Basic description of the euphonium and tuba, with information about the Wagner tuba. Includes a link to a fingering chart.
Finnish Trombone and Tuba Association - Introduction to the group, contact details, concerts, and archives.
Kansas State University Tuba Euphonium Studio: Links - Dozens of links divided into sections for solo performers, ensembles, professional organizations, festivals, competitions, and merchandise.
Music of Kenneth D. Friedrich - Original compositions for the tuba and euphonium.
The Serpent Website - A collection of information about the serpent, a precursor to the tuba and euphonium.
Tuba and Euphonium Links - About two dozen links including information sites, repair services, humor, and manufacturers such as the St. Petersburg tuba from Russia.
Tuba-Euphonium Press - Music publishing for the Tuba and Euphonium. Owned by International Tuba and Euphonium Association
TubaNews.com - Monthly online magazine with articles, news, player profiles, events calendar, free classifieds, and forums.
University of Missouri at Kansas City Euphonium and Tuba Studio - Conservatory program for undergraduate and graduate students active in ensembles and competitions. Lists courses, typical literature performed, and many honors and awards.