Hash House Harrier
Jack Horntip Collection of Hash Songs, Songbooks & Recordings
(a collection of printed (and digital!) hash songbooks, recordings and "field recordings")
A 110 Digital Ricordings of Hash Songs from Shut Yer Manhole (aka Little Head)
page of videos of hashers singing various hash songs (parental advisory).
Xmas Hash Songs
composed by Shakesbeer.
Another Hash Hymnal by the Big Heads Hash House Harriers (Very good)
Songs for Sinners
(off the CCRAP web site)