Enhanced Listing Every member of the BuildingOnline Network is listed in our Directory - the most extensive listing of building industry professionals - based on their category (lumber, flooring, tools, etc.). An Enhanced Listing places your site link at the top of your directory category. Index Having your site "indexed" by a search engine means the search engines have found and recognized your site, and included it in their listings. Keyword Keywords and keyword phrases are words that define the most important content on your site. When created and used correctly, they are instrumental in getting your site found on the Internet. Search Engine Friendly Search Engine Friendly is a general term we use to describe an overall strategy of designing, building and maintaining a site in such a way that allows for optimal search engine results when the time comes to submit your site to the search engines. Site Ranking Your site ranking is defined by how close you come to the top of the list, in your specific category, when someone finds you, using a search engine.