AI search engines don't show blue links — they generate answers and cite sources. If your content isn't being cited by ChatGPT, Perplexity, or Google AI Overviews, you're invisible in the fastest-growing search channel. This is where GEO (Generative Engine Optimization) comes in. The Princeton GEO Study (KDD 2024) Researchers from Princeton, IIT Delhi, and Georgia Tech published the first systematic GEO study. They tested 9 content optimization strategies on 10,000 search q...