Google (NASDAQ:GOOG) owns the index to the world's knowledge. What it isn't good at, however, is telling us which sources are well-written, amusing, or authoritative, especially since a whole industry has evolved to help businesses game the system by pushing their links to the top of the list regardless of appropriateness.

What we net users need is a curator, someone to cull out the crap, spam and marketing spin, leaving only the best answers to our question. This is the role the new search site Mahalo, just launched by internet entrepreneur Jason Calacanis, intends to provide.

Unlike sites such as Digg, which aggregate visitor opinion to vett interesting web content (and whose results are frequently gamed), Mahalo uses a staff of real human professional guides. These guides take the most popular search terms du jour and compile a prioritized list of resources that best address them.

Obviously, indexing even a small part of all possible search terms by hand is impossible, I asked Calacanis what Mahalo's goals were in this respect. He replied, "We are setting the goal of the top 10,000 terms by the end of the year and the top 25,000 next year." He pointed out that the number of unique search terms used every day is hugely inflated because people frame the same question in so many different ways. "If you come to our iPod or flatpanel TV pages, you don't have to do the 10 secondary searches. That being said, our goal is to do the fat part of the long tail and leave the other 60-90% of the tail to Google--which is why we show Google when we don't have a hand-written page."