  We report the discovery of H2O maser emission at 1.35 cm wavelength in seven
active galactic nuclei (at distances up to <80 Mpc) during a survey conducted
at the 70-m diameter antenna of the NASA Deep Space Network near Canberra,
Australia. The detection rate was (approx.) 4%. Two of the maser sources are
particularly interesting because they display satellite high-velocity emission
lines, which are a signature of emission from the accretion disks of
supermassive black holes when seen edge on. Three of the masers are coincident,
to within uncertainties of 0.''2, with continuum emission sources we observed
at about (lamda)1.3 cm. We also report the discovery of new spectral features
in the Circinus galaxy H2O maser that broaden the known velocity range of
emission therein by a factor of (approx.) 1.7. If the new spectral features
originate in the Circinus accretion disk, then molecular material must survive
at radii (approx.) 3 times smaller than had been believed previously [(approx.)
0.03 pc or (approx.) 2 x 105 Schwarzschild radii].
