What Google Says:
Add some color to your documents, presentations and websites with easy to create charts and diagrams with Google Drawings.
Source: Google Drawings
Why You Should Use It:
Google’s version of a free Visio, Google Drawings is a rudimentary drawing tool. Visio has tons more templates and diagrams but is also pretty costly, starting out at $419 or $18.50/mo.
These days you can find some pretty good templates that people have created to get you started with Google Drawings.
Google Drawings’ biggest advantage is that you can collaborate in real time with everyone who’s been given access to the drawing on Drive. All changes are saved automatically and everything’s in the Google cloud, of course, so no backups required, ever.
Have a look at this YouTube Video that gives you an intro to Google Drawings: