Google is a worldwide search engine that allows users to search for information on people, organizations, and items. It offers various tools like Google Finance for viewing stock prices and news, Google Maps for finding addresses and directions, Gmail for email communication, Google Shopping for deals, Google Docs for collaborative document editing, and Google Earth for viewing the Earth. The document expresses the opinion that Google and its tools are very helpful as they allow people to search for, buy, and find details about things not physically accessible and learn about the past without books.