WolframAlpha

The New York Times today talks about a new search engine from Stephen Wolfram, the creator of Mathematica software. The engine is not a Google/Yahoo-like web crawler, but rather a query interface to a large collection of data. WolframAlpha can answer queries like "ldl 120," for example, with charts of cholesterol levels in the U.S. population. This kind of search engine is less of a competitor and more of a complement to search engines like Google.