Barbershop Harmony Society - The world's largest all-male singing organization.

Mid-Atlantic District of the BHS - Barbershop news and information covering New York to Virginia.

Hunterdon Harmonizers barbershop chorus - Home chapter of Untamed

MaxQ - 2007 International Quartet Champion

Vocal Spectrum - 2006 International Quartet Champion; 2004 Collegiate Quartet Champion

The Westminster Chorus - 2007 International Chorus Champion

The Vocal Majority - 2006 International Chorus Champion

Ancient Harmonious Society Of Woodshedders - Ear singing at its best

Atlantic Harmony Brigade - Extreme quartetting for the rugged individualist

Tim Tracks - Barbershop learning tracks by Tim Waurick.