Anyway, as to Search Tuna. Some tidbits from their “about” page:
Search Tuna performs a live, customized web search for you. This takes some time, but our goal is to always get you the best results possible. In this sense, Search Tuna is a results engine.
We e-mail you a link to your results when we’re done. That is why we ask you to register — we need your name and e-mail address. Your results are also always available at your account page. Or, you can simply wait.
I kind of like the attitude at this site. It’s very no nonsense.