Hi Mark
If you are building a web site and want to use frames, but still want those that have browsers incapable of reading frames to see your site, then it is necessary place a no frames pages between the tags, "NOFRAMES" and "/NOFRAMES", use the greater than and lesser than symbols in place of the quotation marks. Also if you use frames these tags may be used to optimize your content info for Search Engines. If you would like to know more about these NOFRAMES tags and META tags in general then you should visit the Search Engine Forum and scroll down to the forum on Meta tags.
Go here,
Search Engine Forum