A WebmasterWorld thread points to a DuckDuckGo, a search engine that competes with Google, help document that says that to rank well in all search engines can be done by getting good links from sites like Wikipedia. I guess no one told DuckDuckGo that links on Wikipedia are nofollowed and Google and Bing do not count those links....
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DuckDuckGo: Links From Wikipedia Help You Rank In Search Engines
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