Google is trying to create an online reading room for five major libraries by scanning stacks of hard-to-find books into its Internet search engine. The initiative gives Google the right to index material from the New York public library as well as libraries at four top universities -- Harvard, Stanford, Michigan and Oxford in England. Librarians are also excited about the prospect of creating a digital record for the reams of valuable material written long before anyone dreamed of computers. But scanning the library books will be a difficult task. Michigan's library alone contains seven million volumes. Google hopes to get the job done at Michigan within six years.