Do We Need Another Search Engine?

Come on, now. Wikia Search, a project from the same people who brought you Wikipedia, is bringing the search engine market to the Wiki stage by allowing people to tweak the search algorithms and to help fight spammers who artifically try to inflate their rankings in search engine results. Google is retaliating by releasing knol, an online encyclopedia that will differ from Wikipedia by identifying who wrote the article, but also allow the author to share in some of the advertising revenue.