AMG: Harmony Vocal Group Overview of the style, important recordings, and a list of key artists. http://www.allmusic.com/cg/amg.dll?p=amg&sql=C11982

Vocal Group Harmony Photos and audio of rhythm and blues vocal group harmony from the 1930s, 1940s and 1950s. http://www.group-harmony.com/

Doo-Wop Society of Southern California Dedicated to the preservation of pre-rock group harmony vocal music. Site includes photos and stories about leading figures of the genre. http://www.ElectricEarl.com/dws/

XM 73 - Frank's Place American standard songs broadcast via satellite to the continental US. List of typical cuts, program schedule, song request form. http://www.xmradio.com/programming/channel_page.jsp?ch=73