• Read Write Web, Friday, September 19, 2008 11:45 AM

"Using a web search engine like Google is usually fine for casual searches, but when you need to delve deep into a subject, it just won't do," says Sarah Perez. "What you really need is a research engine that explores the unindexed reaches of the Deep Web. For that, there's now Infovell, 'the world's research engine.'"

Infovell crawls info vaults, including PubMed Central (a trove of medical and health-based journals), claims filed with the U.S. Patent and Trademark Office, as well as various academic publications that are open for the perusing, but not indexable by the major engines. The engine can also send breaking news alerts to many devices, including PDAs.

The only caveat is that the cutting edge technology isn't free. "Although expected, it's disappointing to see that this service will be yet another source of critical information which most people won't have the time or financial resources to use it," Perez says. Interested searchers can try the service for a month free, starting Sept. 22.

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