We prove that given a family (Gt) of strictly pseudoconvex domains varying
in C2 topology on domains, there exists a continuously varying
family of peak functions ht,ζ for all Gt at every $\zeta\in\partial
G_t.
Abstract basins appear naturally in different areas of several complex
variables. In this survey we want to describe three different topics in which
they play an important role, leading to interesting open problems