The Explore tool can be found in the bottom right hand corner of your Google Doc.
You can use Explore to search for files, images, web links or information all from within your Google Doc - no extra tabs needed!
Open a Google Doc
Click Explore
At the top, search for a document, presentation, image, chart, or webpage. Search results will show in categories:
Web: Info from the web related to your document.
Images: Images from the web related to your document.
Drive: Documents saved in your Google Drive.
Add an item from your search:
Add an image or chart: Click the item you want to add. At the top, click Insert.
Add a footnote: Point to your search result. Click Cite as footnote .
Add a link: Point to your search result. Click Insert Link .