  Analysis of INTEGRAL Core Program and public Open Time observations has
recently provided a sample of 60 extragalactic sources selected in the 20-100
keV band above a flux of 1.5 10^-11 erg/cm2/s. As this band probes heavily
obscured regions/objects, i.e. those that could be missed in optical, UV, and
even X-ray surveys, our sample offers the opportunity to study the
extragalactic sky from a different point of view with respect to surveys at
lower energies. We present an update of our analysis, including the first
sample of AGNs detected above 100 keV. We also discuss the results of follow up
observations performed at optical and X-ray frequencies with the aim of
classifying our objects and studying the effects of intrinsic absorption in
gamma-ray selected AGNs. The average redshift of our sample is 0.134 while the
mean 20-100 keV luminosity in Log is 43.84; if blazars are excluded these
numbers become 0.022 and 43.48 respectively. Defining an absorbed object as one
with NH above 10^22 atoms/cm2, we find that absorption is present in 60% of the
objects with at most 14% of the total sample due to Compton thick active
galaxies. Almost all Seyfert 2s in our sample are absorbed as are 24% of
Seyfert 1s. We also present broad-band spectral information on a sub-sample of
the brightest objects: our observations indicate a mean photon index of 1.8
spanning from 30-50 keV to greater than 200 keV. Finally, we discuss the
LogN/LogS distribution in the 20-100 and 100-150 keV bands derived from our
sample. The present data highlight the capability of INTEGRAL to probe the
extragalactic gamma-ray sky, to discover new AGNs and to find absorbed objects.
