  A wealth of new data from upgraded and new radio interferometers are rapidly
improving and transforming our understanding of the faint extra-galactic radio
sky. Indeed the mounting statistics at sub-mJy and uJy flux levels is finally
allowing us to get stringent observational constraints on the faint radio
population and on the modeling of its the various components. In this paper I
will provide a brief overview of the latest results in areas that are
potentially important for an accurate treatment of extra-galactic foregrounds
in experiments designed to probe the Epoch of Reionization.
