"Why isn't my search engine an efficient file browser?" Google isn't really a library; you can't just walk up and down the aisles until something pops out at y

"Why isn't my search engine an efficient file browser?" Google isn't really a library; you can't just walk up and down the aisles until something pops out at you. Which raises the question: What is the equivalent on the internet? If I want to browse random books until something pops out at me, where do I go on the internet?