Menus

Menus appear at multiple levels of a site's navigation and hierarchy. At the top level, every page has the global navigation menus display. Within a page, specific areas may have local navigation menus, and specific elements of a page (such as a row of a table) may have application menus for taking action on those elements. 

Accessibility

• Creating Accessible Menus and Mega Menus by Level Access explains how to make menus that behave the way users expect, regardless of their accessibility needs.

Hamburger Menus

• Great Alternatives to Hamburger Menus| by UX Planet lists a number of menu alternatives for global and local navigation when you don't want your mobile experience stuffed in a hamburger menu.

Additional Resources

• 10 ways to design menus that don't suck by Carrie Cousins on Web Designer Depot talks about ways to keep global navigation from being awful.
• Don't Use Aria Menu Roles for Site Nav by Adrian Roselli pretty much sums itself up in the title.