Wikipedia is working on a plan to create a search engine to take on Google and Yahoo!. According to Jimmy Wales, their goal is to take about 5 percent of the Internet search market.
He announced Wikiasari last year as a competitor to Google and one that would be more difficult to spam. However, according to the Wiki Search site, Wikiasari is not the name of the new project:
Wikiasari is not and will not be the name for the free search engine we’re developing. It was the name of a former project.
Further, he says that, contrary to speculation, Amazon has nothing to do with this project. Amazon is still a valued contributor to Wikia, Inc., but they are not participating in Wikia Search.
His idea then was that Wikiasari would be human edited, much the same way as Wikipedia. I am guessing that he has learned from the DMOZ problems and will make Wikia Search better :).