Your NPD website can be populated with an unlimited number of pages. But they need to organized in a way that makes information easy to find.

So I designed my NPD MOAA website navigation scheme to be something like a file cabinet.

The drawers of this cabinet contain "Level 1" pages, which appear in the main navigation bar on every website page:

Now imagine that each drawer contains folders, which correspond to Level 2 pages, as defined under the parent Level 1 page:

Each folder might contain pages, which correspond to Level 3 pages, as defined under its parent Level 2 page:

And while it's rarely necessary, you can create Level 4 pages in a similiar fashion:

 What's more, every page includes a Navigation template on the left panel: