On Monday Google announced a top-secret initiative it's been working on: a new indexing and ranking technology for Google's search engine, called Google Caffeine. While most probably won't notice much difference, those interested in driving Web searchers to their sites might find the consequences dire.

On Thursday, Microsoft unveiled Bing, which we all knew was coming and was the new name for its long-rumored Kumo search engine revamp. Moreover, it's not just a search engine. Nope, it's a decision engine, and Microsoft also states that Bing is a new brand, as well.

Search engines are a dime a dozen. Anyone remember Cuil? But with WolframAlpha, Stephan Wolfram has a new kind of search engine in mind, and he has the track record to make one think he can do it.

Earlier we, and many others, showed a great deal of excitement over the new version of Google's search app for the iPhone. The new, voice-enhanced Google Mobile App was supposed to be updated Friday, according to the New York Times. But, uh, it never showed up.

RocketInfo is a search technology company in the spirit of Google and Yahoo!, but with a new approach to the delivery of results, news and business information.