What about Frames Accessibility?

• Title (and name) each frame and "title" each page used within the frame to facilitate frame identification and navigation.  
• Describe the purpose of frames and how frames relate to each other if it is not obvious by frame titles alone.  

Examples:

Problem implementation: Louisiana Department of Education Home Page

Good implementation: IBM Web Accessibility - Course Menu (view source - NOFRAMES)

Syntax for adding TITLE and NAME to frame

<frame src="banner.htm" name="Course navigation" title="Course navigation" frameborder="0" scrolling="no" marginwidth="0" marginheight="0">

Try it:

Add TITLE and NAME to each frame declaration

The Texas Union Online - Informal Classes