Resources and Tools to Research the Deep Web. An ever-increasing amount of information on the Web today is available only through search interfaces: the users have to type in a set of keywords in a search form in order to access the pages from certain Web sites. These pages are often referred to as the Hidden Web or the Deep Web. Since there are no static links to these “hidden web pages”, search engines like google, Bing and Yahoo cannot discover and index such pages and thus do not return them in the results. However, according to recent studies, the content provided by many Deep Web sites is often of very high quality and can be extremely valuable to many users.
Resources and Tools to Research this “Hidden Web”
Tips and Strategies. Searching the deep web should be done a bit differently, so use these strategies to help you get started on your deep web searching. Don’t rely on old ways of searching. Become aware that approximately 99% of content on the Internet doesn’t show up on typical search engines, so think about other ways of searching. Practice. Just like with other types of research, the more you practice searching the deep web, the better you will become at it. Don’t give up. Researchers agree that most of the information hidden in the deep web is some of the best quality information available. Bookmark your databases. Once you find helpful databases, don’t forget to bookmark them so you can always come back to them again.
Conducting a Search of the Deep Web
Many specialized topics are addressed through databases or database-supported Web sites that, although accessible through the Web, are not indexed by conventional Web search sites, such as Google, Bing or Yahoo. These sites are referred to collectively as the Deep Web, Hidden Web or the Invisible Web because they are not easily found by the search technologies used by leading search sites.
Academic Search Engines and Databases: The world of academia has many databases not accessible by Google and Yahoo!, so give these databases and search engines a try if you need scholarly information.
Collaborative Information and Databases: One of the oldest forms of information dissemination is word-of-mouth, and the Internet is no different. With the popularity of bookmarking and other collaborative sites, obscure blogs and websites can gain plenty of attention. Follow these sites to see what others are reading.
Custom Search Engines: Custom search engines narrow your focus and eliminate quite a bit of the extra information usually contained in search results. Use these resources to find custom search engines or use the specific custom search engines listed below.
General Search Engines and Databases: These databases and search engines for databases will provide information from places on the Internet most typical search engines cannot.
Meta-Search Enginess: Meta-search engines use the resources of many different search engines to gather the most results possible. Many of these will also eliminate duplicates and classify results to enhance your search experience.
Scientific Search Engines and Databases: The scientific community keeps many databases that can provide a huge amount of information but may not show up in searches through an ordinary search engine. Check these out to see if you can find what you need to know.
Semantic Search Tools and Databases: Semantic search tools depend on replicating the way the human brain thinks and categorizes information to ensure more relevant searches. Give some of these semantic tools and databases a try.