AltaVista from Digital. Can be quite accurate if you are an able searcher. Provides different output options and allows both simple and complex search queries. Very fast, Very good. Allows for Boolean, adjacency, proximity, truncation, and specific field searches.
Results are often overwhelming.
No browsable index supported. Results are ranked extremely well, so you are likely to find what you are looking for quickly, and they include WWW and gopher documents, as well as newsgroups. Provides good instructions, easy search customization, and very high accuracy. Excite Allows both concept search and keyword search, the former being somewhat incomprehensible. Results provide site sorts, confidence ranks and similar page searches.