Introduction.- Group Processes in the Age of CSS and Big Data.- Group Processes Inputs.- Response Surface Methodology for Nonlinear Factors.- Algorithms for Team Assembly.- Group Processes Dynamics.- Relational Event Analysis for Group Interaction.- Automated Text Mining to Analyze Communication Content.- Social Sequence Analysis Approach for Action Groups.- Group Processes Outputs.- Probablistic Graphical Models to Analyze Causality.- Machine Learning Classification to Understand Group Performance.