SavvySearch
A site that searches multiple engines simultaneously.
SearchHippo
A crisp and clean spider based web search with free PHP, XSLT and XML code for integration.
Teoma
Searches deliver pages grouped by subject and as a listing, seaches can be modified to search for an exact phrase and to include and exclude specific terms.
TrueSearch
Search engine actively removes dead links.
WebCrawler
Get many hits from this very easy-to-use engine.
WiseNut
Up-to-date index on almost 1.5 billion pages, including site categorization and international search support.
Yahoo!
One of the premier internet search engines.