PNet: Program for the Estimation and Simulation of p* Exponential Random Graph Models. PNet is a software for the statistical analysis of social network data using Exponential Random Graph Models (ERGM) and Auto-logistic Actor Attribute Models (ALAAM). PNet, XPNet and MPNet run on Windows and are free for noncommercial use. PNet is for the simulation and estimation of ERGMs for one-mode networks.