Search engines

Search engines
Alta Vista (see review by Greg R. Notess)
Google.com (see review by Greg R. Notess)
Lycos (see review by Greg R. Notess)
MetaCrawler (runs searches on multiple search engines; very broad reach, though relatively thin returns [limited hits per search engine]; best used to locate uncommon items)
Collection of Search Engines and Directories (Mitsuharu Matsuoka, Nagoya University)
W3 Search Engines (Centre Universitaire d'Informatique [CUI], University of Geneva)
Search Engine Showdown: The Users' Guide to Web Searching (Greg R. Notess, Montana State University–Bozeman)