7. A collection search system responsive to a user query against a collection of documents to provide a search report, said collection search system comprising: a) a collection index including first predetermined single word and multiple word phrases as indexed terms occurring in said collection of documents, wherein said collection index is distributed in different subgroups which share common group statistics; b) a linguistic parser that identifies a list of search terms from a user query, said linguistic parser identifying said list from second predetermined single words and multiple word phrases; and c) a search engine coupled to receive said list from said linguistic parser, said search engine intersecting said list with said collection index to identify a predetermined document from said collection of documents said search engine including an accumulator for summing for said predetermined document a relevancy score related to the intersection of said predetermined document with said list.
8. The search system of claim 7 wherein one or more of said subgroups is stored within high-speed memory whereby searches of said one or more of said subgroups do not require accesses to slower-speed memory.