  A list is presented of known extragalactic radio jets which also have
associated X-ray emission. The canonical emission processes for the production
of X-rays are reviewed and the sources are categorized on the basis of our
current understanding. Although it seems clear that the X-ray emission is
non-thermal, the two competing processes, synchrotron and inverse Compton
emissions, arise from extremely high energy (synchrotron) or extremely low
energy (beaming models with IC emission), relativistic electrons. Only
synchrotron self-Compton emission from a few hotspots provides information on
the `normal' energy range of the electrons responsible for the observed radio
emission.
