Only if subject is included in the Clearinghouse. Found zero hits for phrase and multiple concept queries. Provides last crawled date with descriptions. Very small database. Sends keyword queries simultaneously to six search engines, with average precision results.
Descriptions provide links to related sites.
Searches can be limited to individual categories. Keyword queries of the Internet Sleuth database with sample queries resulted in zero hits. Specialized search engine precision results varied by tool. Maintained by professionals in the fields covered. Geosciences housed at University of Calgary, Meteorology housed at Penn State, etc.