http://www.sccs.swarthmore.edu/org/blackcoffee/ Coed African-American group with repertoire including spirituals, R&B, and hip-hop. No audio. http://www.sccs.swarthmore.edu/org/doppler/ Coed group with an all-rock repertoire. Audio samples in .wav format. http://www.sccs.swarthmore.edu/org/mixedco/ Coed group with eclectic pop and humor repertoire. Song samples in MP3 format. http://www.sccs.swarthmore.edu/org/psalters/ Coed Christian group. Links to song lyrics; no audio. http://www.sccs.swarthmore.edu/org/feet/ All-male group with a barbershop, doo-wop, and pop repertoire. No audio. http://www.sccs.swarthmore.edu/~murphy/tonedef/ All-male group with pop repertoire. Song samples in MP3 format.