  In this paper we briefly report some recent developments on generalized
synchronization. We discuss different methods of detecting generalized
synchronization. We first consider two unidirectionally coupled systems and
then two mutually coupled systems. We then extend the study to a network of
coupled systems. In the study of generalized synchronization of coupled
nonidentical systems we discuss the Master Stability Function (MSF) formalism
for coupled nearly identical systems. Later we use this MSF to construct
synchronized optimized networks. In the optimized networks the nodes which have
parameter value at one extreme are chosen as hubs and the pair of nodes with
larger difference in parameter are chosen to create links.
