Northern Light handles boolean search strategies with finesse. WebCrawler , like Lycos, has robot programs constantly searching out new sites. WWW Worm is another robot-generated searchable collection of links. Dogpile runs multiple searches quickly, but does not merge results. Metasearch includes an easy phrase search option.
Profusion is a little slow, but searches several databases and filters out duplicate results.
Savvy Search also searches multiple search engines. It is available in several languages. SherlockHound search includes Aol, DirectHit, Excite, Lycos, Msn, Netscape, NorthernLight, and Yahoo. SuperSearch 's Floating Window will enable you to move between the Web's most useful search engines effortlessly.