I am looking for a map which shows all black holes in our Milky Way galaxy.

See the link of an Exoplanet map for what I mean.
http://www.hpcf.upr.edu/~abel/phl/phl_exoplanets_stellar_map.png

If it is not existing (yet). Is there at least an online catalogue which summarizes for all BH's which have been discovered so far?