Swanky there is alot of ways to making gateway pages. I use galleries as gateway pages to my main site. on each of my galleries there is a link back top my main site.
but mainly a gateway page is a page that is optimized for each keyword and then submited to search engines and link pages.
also you can make diffrent index pages for recips to certain sites so that you main page is not clutterd with a sitload of recips.
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