Weighted evolving networks: coupling topology and weights dynamics
  We propose a model for the growth of weighted networks that couples the establishment of new edges and vertices and the weights' dynamical evolution. The model is based on a simple weight-driven dynamics and generates networks exhibiting the statistical properties observed in several real-world systems. In particular, the model yields a non-trivial time evolution of vertices' properties and scale-free behavior for the weight, strength and degree distributions. 
Alain Barrat, Marc Barthelemy, and Alessandro Vespignani