Wide Area Information Servers
A distributed information service which offers simple natural language input, indexed searching for fast retrieval, and a "relevance feedback" mechanism which allows the results of initial searches to influence future searches. Public domain implementations are available. See also: archie, Gopher, Prospero.
(Wide Area Information Servers). An Internet multimedia search-and-retrieve tool offering more than 500 databases. WAIS (pronounced "ways") lets users look through the full text of the document.