Did you find just what you were looking for, only to discover that someone else found it first? Check this out:

As you can see, this item has been checked out; when viewing an item in the catalog, you can now click “Check nearby libraries” to see a list of libraries that may have the item.

What makes this cool? They are listed in order of closeness to USAO! You even get to see how far you have to drive!
Think that you have to have an account with a particular library to check a book out from them? Not necessarily so. You can get an OK Share Card. All you have to do is come to the circulation desk and ask for an application. Be prepared to show your ID.
Not all libraries honor OK Share cards, so you should check the list of participating libraries before you make any plans.

Click the item underneath the name of the library that you may want to borrow from. The items are named by their media type, which is a book in this case. UCO is an OK Share participant and has the next closest library that carries this item, so we’ll look in their catalog.
Clicking the link takes us right to the item in UCO’s catalog. It looks like they have a copy of the item that has not been checked out. It would be a good idea to call before setting off to make sure that they actually have it.