>
I have a web site that has multiple sections in itCool. Scroll up to change sections.
> and some of those sections have articles or stories in them
That's pretty spiffy.
> and some of those stories have chapters. I have breadcrumb navigation for it.
When I read an ebook, I scroll down. When I scroll down I expect the navigation elements to move with (and disappear from) the screen.
If you want to repeat your navigation elements at the bottom of the page, that'd be a nice compromise. But please do not keep navigation elements on screen.
> There are also web sites that have menus in them
Menus are not discoverable in websites. Most websites implementations of menus is god-awful. It's absolutely _not_ intuitive, ever, that hovering a mouse should open a menu. And if you click a menu, should that navigate to a new page like clicking on anything else? Or should clicking suddenly _not_ navigate to a new page but instead do something different? How do you tell the difference?
Answer: you don't. The site shouldn't use menus. Use hyperlinks.
> because they have different sections and they choose to let you navigate between those sections using tabs or buttons or left-hand navigation columns or whatever. Those web sites are, nonetheless, still web sites.
And they're trashy websites that should be apps instead.