  In a holographic braneworld universe a cosmological fluid occupies a 3+1
dimensional brane located at the boundary of the asymptotic AdS$_5$ bulk. The
AdS/CFT correspondence and the second Randall-Sundrum model are combined to
establish a relationship between the RSII braneworld cosmology and the boundary
metric induced by the time dependent bulk geometry. Some physically interesting
scenarios are discussed in the framework of the Friedmann Robertson Walker
cosmology involving the RSII and holographic braneworlds.
