To answer the above question, Centiare is using MediaWiki, but a special implementation of it called "Semantic MediaWiki". Our theory (none of the principals of the project is an SEO expert) is that our use of semantic tagging in the articles (which creates these lovely RDF tables) and our encouragement of Google AdSense ads being deployed by our users (you figure Google's got to favor a site with their ads over an equally-notable site without their ads), are what help propel our directory listings to top spots on Google.
I'm afraid to say much more, because I just got a 6-month ban over on the DigitalPoint forum, just for accepting a "keyword challenge" that would help to prove or disprove whether Centiare can actually work in "commonly used" keyword searches. (They were not impressed with my couple of examples thus far.)
Greg
There is so many holes and things wrong with what you just said. i don't even know where to begin.
(you figure Google's got to favor a site with their ads over an equally-notable site without their ads)
our use of semantic tagging in the articles...are what help propel our directory listings to top spots on Google.
"largest commercial printers" Orlando...there's no Wikipedia mention.
I could write entire articles on whats wrong with just those three statements. Instead i'll just let ya know that your coming on a bit strong with your promo campaign. I'd tone it down, You should be focused on getting webmasters to recommend and talk about you, not hate and be annoyed by you.