Status of High-Energy Neutrino Astronomy
  With the recent discovery of high-energy neutrinos of extra-terrestrial
origin by the IceCube neutrino observatory, neutrino-astronomy is entering a
new era. This review will cover currently operating open water/ice neutrino
telescopes, the latest evidence for a flux of extra-terrestrial neutrinos and
current efforts in the search for steady and transient neutrino point sources.
Generalised constraints on potential astrophysical sources are presented,
allowing to focus the hunt for the sources of the observed high-energy
neutrinos.
