Few things are more irritating to surfers than sites that perform in ways which alter browser settings, or cause them to lose their place. A few simple courtesies can make your site visitor-friendlier.
Many sites use frames.
Many sites link to other sites. Unless there is an excellent reason for displaying another site inside your own frames, the designer should 'break' the frame when linking to outside sites. POP-UPS Use with care. If not useful, and easy to close, you'll find your visitors clicking them closed automatically. TAGS META tags can be a great tool, but when used for screen refresh or quickly changing background colors or redirection, they can also tamper with a visitor's browser history.