Is there a detailed business model available how you will try to attacke the market share of a well established search engine like Google?
I really like the idea, but Google perfected its search engine algorithms over decades.
New players on search engines market can start clan search without political and corporative dependencies. It can attract many new users, who dont want to see "big brothers" search.
I recommend to read the white paper. It's well written and explains a lot of the things the people are asking here. Worth a read!