Does any one help to know about supplemental pages? It is worth for the purpose of website promotion or a part of the black hat seo because i first time came across with this term.

According to me, search for site:www.xyz.com __ to see a list of the supplemental pages for your website in google dot com.

Supplemental pages are pages which are indexed in Google but do not exist at this time. But during searching for a particular thing they are shown in the search.

Supplemental pages are pages which are indexed in Google but do not exist at this time. But during seeking for a particular thing t, ey are shown in the search.

Category:Wikipedia supplemental pages. This is a maintenance category. It is used for maintenance of the Wikipedia project and is not part of the encyclopedia. It contains pages that are not articles, or it groups articles by status rather than subject.