  We present a connection between W-algebras and Yangians, in the case of gl(N)
algebras, as well as for twisted Yangians and/or super-Yangians. This
connection allows to construct an R-matrix for the W-algebras, and to classify
their finite-dimensional irreducible representations. We illustrate it in the
framework of nonlinear Schroedinger equation in 1+1 dimension.
