Our Search index contains more than just what's on the web, because helpful information can be located in other sources.
In fact, we have multiple indexes of different types of information, which is gathered through crawling, through partnerships, through data feeds being sent to us and through our own encyclopedia of facts, the Knowledge Graph.
These many indexes mean that you can search within millions of books from major libraries, find travel times from your local public transport agency, or find data from public sources like the World Bank.
