Do Google searches go deep enough?

“Many scholarly archives on college and public Web sites don’t show up in Google because the search engine doesn’t index them — they’re in what many call the “deep Web,” below the level that most search engines look. A new study found that fewer than half — just 44 percent — of a sample group of deep-Web pages from scholarly archives showed up in Google searches.” [Text from Chronicle of Higher Education]

The study, mentioned above, is Google Still Not Indexing Hidden Web URLs and is available on the D-Lib Magazine website.
D-Lib Magazine is an electronic publication focussing on “digital library research and development, including but not limited to new technologies, applications, and contextual social and economic issues.” Published six times a year, the full contents are available for free on the D-Lib web site. Be sure to check out this great, free resource!

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