Webrings.

Webrings usually have a site where the code is located. I add it on my site as html codes. Furthermore, you can add a page on your website dedicated to webrings. This is what I did... because I feel that websites should be free of ads and banners, etc. from the main page.

Anyway, yes you do need to add coding to your website or the ring will detect that you haven't added the codes and your website will be known as "inactive" on the ring.
 
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