Seems like this has been getting more attention lately but still seems very preliminary..
A project to create the search engine that changes everything.
"Search is part of the fundamental infrastructure of the Internet. And, it is currently broken.
Why is it broken? It is broken for the same reason that proprietary software is always broken: lack of freedom, lack of community, lack of accountability, lack of transparency. Here, we will change all that.
There have been some amazing projects in recent years which have matured now to the point that a new alternative is possible. Wikia is funding and supporting the development of something radically new.
Nutch and Lucene and some other projects now provide the background infrastructure that we need to generate a new kind of search engine, which relies on human intelligence to do what algorithms cannot. Just as Wikipedia revolutionized how we think about knowledge and the encyclopedia, we have a chance now to revolutionize how we think about search.
Help me out, spread the word. I am looking for people to continue the development of a wiki-inspired search engine. Specifically community members who would like to help build people-powered search results and developers to help us build an open-source alternative for web search.