- Mainely A Capella
Offers the largest selection of a cappella recordings in the world through both a printed catalog and internet e-commerce
- Primarily A Cappella
Dedicated to the discovery, dissemination and celebration of the best vocal music from around the globe
- Ensemble
Index of sites relating to all areas of music, including barbershop
Maintained by Dan L. Wood
- The Harmony Connection
A mailing list discussion group for members of Harmony, Inc.
- The Harmonet
A mailing list discussion group for people interested in Barbershop Harmony
- Applause Radio Show
Each week Dave Stadtmauer and the members of the Hunterdon Harmonizers bring you the very best of A Cappella music
- Laughter, Love and a Barbershop Song
A wonderful documentary of the formative days of the men's Society, when the greats such as Lou Perry, Earl Moon, Buzz Haeger, Freddy King and Forry Haynes, to name just a few, were creating memories. There are so many great stories about quartets from the Midstates Four to BGSU, from the Buffalo Bills to the Boston Common - in all, more than 100 quartets, 45 chapters, and 250 individual barbershoppers are mentioned by name
- Harmony Travel
Harmony Travel is owned and operated by The Barbershop Harmony Society (SPEBSQSA) and provides memorable domestic and foreign travel experiences to share with your barbershop friends and family AND your friends outside the barbershop family!
- TLC Tours
Bringing Barbershop Harmony to Ireland since 1989