Considered by many to be the best. Says it can retrieve a million pages a day. A crew of editors reviews the most interesting pages. Plans to add on-site indexing, which should speed up Web indexing. Calif. Online since August with smart spiders preprogrammed to like some sites and shun others.
Humans add some judgments.
Open Text, Waterloo, Ont. Indexes every single word. Can search for phrases, not just words. Calif. America Online's proprietary spider, but can be used for free by anyone. Other types of indexes are also numerous.