The Week of the Search Engine

I seem to have encountered several new search engines this week. The latest is DeepDyve. DeepDyve says it searches the deep Web that other search engines don't reach. It seems to search selected industry databases including open access databases such as Medline and other government medical sources, open access medical journals, and patent databases. It includes SAGE Publications and some other subscription journals. 

These are freely available databases (although may require payment for fulltext), but as we mentioned at our meetings this month, the typical search engines don't search these specialized deep databases. You won't find Medline results in a Google search. You could search each of the sites DeepDyve mentions on its Expert Sources page but it would mean searching each site/publication individually, so this is a productivity/efficiency tool at least. Currently the focus is on patents, life sciences, and physical sciences. And Wikipedia. More industries to come.

You have to sign up and sign in to use the free version of DeepDyve. Premium version--which offers more complicated display and filtering of results, along with some organizing tools--is $45 per month per user.