As its home website describes: "Within the Google results are thousands of your thoughts and opinions about thousands of different topics, people, names, things and places, we simply search Google and let you know what website owners think about the name or topic you suggested."
Google's own description notes that within its search engine, there is a vast array of comments and opinions from users concerning various topics, people, and things. When you ask a question, it searches for relevant websites and shares the viewpoints of their owners.