Use your site stats to ascertain how many users have the plug in, and how many choose to view the html version of your site. Use new technology sparingly . Most use of frames on the web is unnecessary , especially when it's been used simply to seperate the screen into content and navigation. This is often confusing for users , can create unnecessary scroll bars , destroys the url for people to email the current page to someone, or bookmark it for future. The url they save ends up being the top of the frameset, not the one they wanted.
Frames are also detrimental to search engine listings .
Search engines can't spider a frameset , directories often look on them as bad practice for the above reasons. For further info, read about frames in the search engines section . Keep the content on your site current . If your site has static material, users won't need to return as it appears they saw all there was to see the first time. This is true even for large sites .