The New Economy is all about sharing. You share a ride with a cab driver, you share your home with vacationers on Airbnb.
If you work in an office, these days, you collaborate. You do at school, too. Instead of working on a project on your own, whether it's a PowerPoint presentation or a written report, you're getting feedback from other people.
One way to do that is with Google Docs. You share it online with your coworkers, or other students at school. They give you feedback, suggestions, notes, and they may even make edits.
Which is great. The idea is that the final project is a lot better than any one person could've done on their own. There's a problem, though.