This node-link diagram visualizes the soc-firm-hi-tech network dataset, showing 36 firms as green circles and their interconnections as light blue lines. The visualization loads CSV edge data with d3.csv, constructs nodes and links, then runs a d3.forceSimulation with forceLink, forceManyBody, and forceCenter to compute layout positions. The simulation tick handler updates SVG line and circle coordinates, creating an interactive force-directed graph that reveals network structure through node clustering and connectivity patterns.