2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/4449Neutral hydrogen is an important component of the interstellar medium in elliptical galaxies as well as a potentially valuable mass tracer. Until recently, HI surveys of early-type galaxies have been sparse and inhomogeneous but this has changed with the advent of the HI Parkes All-Sky Survey (HIPASS; Barnes et al. 2001). We discuss HIPASS observations of a sample of ~2500 nearby E/S0 galaxies, as well as detailed HI imaging of a range of individual objects.8 pages, 5 figures (Fig.5 in jpeg format), to appear in "The Dynamics, Structure & History of Galaxies", eds. G.S. Da Costa & E.M. SadlerAstrophysicstext