There are loads of good apps available with which you can extend the capabilities of Google Drive and adapt it for your particular needs.
You can add new ones to your own Drive environment through the Create Menu:
Simply choose Connect more apps from the foot of the menu. This will take you to a dialog in which you can explore the available apps and, having chosen one, integrate it into your environment. You can choose apps by category:
Alternatively, there’s a search field at the top right of the dialog where you can search using your own terms. Here I’ve used the search function to find a whiteboard application:
Now I can press the Connect button to connect to this app. Now it’s available to me anytime I open the Create menu::
If you think it looks a little similar to Google’s Chrome Web Store, there’s a good reason for that – that’s exactly where all of these Drive apps are listed.
Developers who have their apps listed in the Chrome Web Store don’t have to do anything more to take advantage of this ability, as Google automatically gets all the current listings and other information straight from the store.