That makes it easier to hit the right one for anybody using a mouse, especially if it doesn't work very well for them. Some browsers driving speech synthesizers allow users to tab through the page to all the links. The words you actually click on for a link should be self-explanatory, even if they're in the middle of a sentence. This is especially true about mapped graphics, where you click on various places on the picture to go to different links. If you do this, you need to also provide that same information in simple text links.
Frames are really just split screens with multiple pages open at once.
They have some really annoying qualities. For instance, Timecast , the otherwise excellent guide to RealAudio audio and video sources, opens a frame at the top of your screen. And even more so if you're trying to make sense of it with speech output. Discovering that there are two columns, and reading the second one, can be a frustrating challenge using speech output only. A new browser page has no history, and many people would like to return to the previous page by hitting the BACK button.