These three tools may help you find more resources than just using a Google.com search!
Google Books allows you to search the full text of books. You can search, browse books online, or buy or borrow books.
Google Scholar provides a simple way to broadly search for scholarly literature and helps you find relevant work across the world of scholarly research.
Google Newspaper Archives is an extension of Google News and provides free access to scanned archives of newspapers and links to other newspaper archives on the web, both free and paid.
The three short YouTube videos below were created by Free Tech for Teachers and provide overviews on these tools. Check them out and learn some new search tricks!