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Discover what's below the surface

Most search engines skim the web's surface. They overlook and do not index the vast collections of high quality, hard to find information hidden in the Deep Web. Formerly known as Infovell, we are DeepDyve, the research engine for the Deep Web.

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Try the research engine for the Deep Web. Get rich, relevant search results. Professional, high-caliber sources. See why we're not....just another search engine. Research now.

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life sciences
Contains respected sources for more than 35 disciplines in biology, biomed, biotech, genetics, and other life sciences. life sciences
physical sciences
Acknowledged sources of information technology, engineering, energy and clean technology. physical sciences
patents
Access the latest abstracts and claims from the U.S. and European Patent Offices. patents
wikipedia
Search Wikipedia like never before. wikipedia
more industries to come