  Composite spectra derived from HST observations of moderate redshift (z~1)
quasars show that the peak of the spectral energy distribution is at ~1000 A,
and that the ionizing continuum falls off smoothly to shorter wavelengths as
$f_\nu \sim \nu^{-1.8}$. HUT and FUSE observations of nearby AGN (e.g., 3C 273)
show similar results. FUSE spectra reveal a wealth of detail in the 912-1200 A
spectral range, including multi-component intrinsic absorption in the O VI
doublet and Lyb, and surprisingly strong narrow-line emission from O VI
1032,1038. Monitoring observations of AGN below 1200 A are feasible, and such
experiments could help to unravel the structure of intrinsic absorbers in AGN
as well as the highest ionization portions of the broad-line region.
