Bergm: Bayesian Exponential Random Graphs in R
  In this paper we describe the main featuress of the Bergm package for the open-source R software which provides a comprehensive framework for Bayesian analysis for exponential random graph models: tools for parameter estimation, model selection and goodness-of-fit diagnostics. We illustrate the capabilities of this package describing the algorithms through a tutorial analysis of two well-known network datasets. 
Alberto Caimo and Nial Friel
stat.CO stat.AP