Experimental Methods for Protein Interaction Identification and Characterization.- Handling Diverse Protein Interaction Data: Integration, Storage and Retrieval.- Principles of Protein Recognition and Properties of Protein-protein Interfaces.- Computational Methods to Predict Protein Interaction Partners.- Protein Interaction Network Based Prediction of Domain-Domain and Domain-Peptide Interactions.- Integrative Structure Determination of Protein Assemblies by Satisfaction of Spatial Restraints.- Topological and Dynamical Properties of Protein Interaction Networks.- From Protein Interaction Networks to Protein Function.- Cross-Species Analysis of Protein-protein Interaction Networks.