This document analyzes Google's market dominance in three areas: structure, conduct, and performance. In terms of structure, Google dominates its markets to such an extent that rivals face significant barriers to entry. In terms of conduct, Google has faced allegations of privacy breaches, advertising illegal products, and manipulating search results to favor its own sites. In terms of performance, Google is highly profitable but these profits do not encourage new competition. The document finds Google's search results are statistically more likely to reference itself and less likely to reference competitors, warranting further antitrust investigation.