Barbershop music:
     Vocal Majority    Acoustix      Gas House Gang

     SPEBSQSA     SouthWestern District Association of SPEBSQSA

A Cappella:
     World A Cappella Association           Mainly A Cappella
    
Classical:
     Dallas Symphony         WRR101

Bible related sites:
    Spring Creek Church of Christ -Plano  Woodland Hills Church of Christ -Tulsa
    Tracts by R. L. Morrison                

Bookstores:
     Truth Bookstore (800-428-0121)      CEI Bookstore (800-633-3216)

Singing & Song Directing School:
     SingingSchool