Google Knowledge Graph is a database of knowledge that Google has developed. The main use of Knowledge Graph is to display quick answers to common queries, but it also improves Google's search ranking algorithm. In the past, online users would have to click through to a website to get straightforward answers. Google realized that many people were wasting minutes scanning articles to find a simple piece of information. Therefore, Google now displays much of the information in its Knowledge Graph on results pages to provide quick answers.