If you make a frame-based page, use it for indexed material. Always make it a "dead end" area of your site, not the home page. Never put links inside your target frame, unless those links use special target names (or javaScripts). The following "Target Names" will help keep you out of trouble:

T A R G ET = "_top " blows away all frames and takes you to the intended URL in a clean browser window.

TARGET="_blank" opens a clean new browser window that appears in front of the previous one.

T A R G E T = "_sel f " makes the link load in its own window.

T A R G E T = " _parent " makes the link load in the full body of the window, even if it is being viewed through some other frame. Using this tag blows away any frames through which people might be seeing your pages.