How to Get Started with Drive

Using Drive isn’t tricky at all. In fact, it’s probably one of the easiest cloud services to start using. So rather than giving you a needlessly long tutorial, this guide offers a brief introduction to navigating and using the Drive interface, and also includes a few tips to help you get the most out of the service.
Want them to be able to update a document? It's easy to do that, too. For security reasons they will need to have a Google account set up to do this, so this is something to be aware of in advance. There's nothing special to do to set up Drive; it's available by default for Google users. Right now Google provides 5GB of free storage for each user, and you can upload a file up to 10GB in size (assuming you had that extra storage available; Google can sell you more space) which could then be shared with others. That's huge progress from worrying about whether your 12MB Word document will make it past email size restrictions!