Google Drive comes with a research tool that finds information for you while you work on your paper. It also conveniently grabs the citation and inserts it, already formatted, for you into your document. Handy!
To use it, go to Tools > Research in your document or presentation and enter your search term. You can also right-click on a word or phrase in your document to search it. Click on the Google icon to specifically search images, Google Scholar, quotes, and more.
In the research pane, hover over a link to preview the page, click on it to open in a new tab, or drag-and-drop selected text into your document. The "cite" button will grab the citation (in MLA, APA, or Chicago styles) and the "insert link" button will insert the source website into your document.