Web Crawler Good for quick, broad search. Small database which gives fast results. Offers searching by terms or by broad subject categories. Yahoo Presents a searchable catalog of links to selected sites, organized by subject. Contains primarily sites submitted and annotated by users.
Commercial sites are heavily represented, and academic subjects have uneven coverage.
Also offers term searching. Claims to search over 700 search engines. Offers searching by terms or broad subject categories. Advanced Search allows you to choose types of engines to be searched. Dogpile Searches more than a dozen search engines, delivering top results from the greatest number of leading search engines and content resources.