Barbershop Harmony Society: www.barbershop.org The Barbershop Harmony Society. This is homebase for barbershoppers, with links to just about everything you'll ever need to get or know about this unique harmony artform. Contact a far-flung chorus or find an arrangement for your quartet. At contest times, listen to (and watch!) live webcasts of the competition.
Evergreen District: www.evg.org/ The Tidesmen Chorus belongs to the Evergreen District, which geographically is the largest of the 16 districts that comprise the Barbershop Harmony Society.
Barbershop Tags: www.barbershoptags.com Vast collection of Barbershop (and SAI and other a cappella) tags, including sheet music, learning tracks and videos. Anyone can upload a tag or a video.
BHS Music Theory Course: www.barbershop.org/education/music-theory/ The Society has introduced a 4-level theory course available to any and all wishing to learn a little more about basic music theory. Each level is divided into 5 lessons, followed by a pre-test review and of course the final test. Looks like it eases you through things slowly, and I'm sure it would be most helpful to those eager to learn more of the language!
BHS ebiz: https://ebiz.barbershop.org/ebusiness/ Update your member information, renew your membership, search for other Chapters or members within the BHS, download issues of the Harmonizer, and more.