Insights into Function of the Immunological Synapse from Studies with Supported Planar Bilayers -- Immunological Synapses Within Context: Patterns of Cell-Cell Communication and Their Application in T-T Interactions -- Molecular and Cellular Dynamics at the Early Stages of Antigen Encounter: The B-Cell Immunological Synapse -- Inhibitory and Regulatory Immune Synapses -- The Immunological Synapse, TCR Microclusters, and T Cell Activation -- Signaling Amplification at the Immunological Synapse -- Multiple Microclusters: Diverse Compartments Within the Immune Synapse -- A Conformation-Induced Oligomerization Model for B cell Receptor Microclustering and Signaling -- Co-Receptors and Recognition of Self at the Immunological Synapse -- Vesicle Traffic to the Immunological Synapse: A Multifunctional Process Targeted by Lymphotropic Viruses -- Plasticity of Immunological Synapses -- APC, T Cells, and the Immune Synapse. will follow