id author title date pages extension mime words sentence flesch summary cache txt ital-3346 LeVan, Ralph OpenSearch and SRU: A Continuum of Searching 2006-09-01 3 .pdf application/pdf 2464 123 64 Levan OPENSEARCH AND SRU | LEVAN 151 Not all library content can be exposed as HTML pages for harvesting by search engines such as Google and Yahoo!. Sup- pose it knows that its users prefer search engines that search the contents of many sites simultaneously, rather than site-specific engines such as the one on the library’s Web site. cache/ital-3346.pdf txt/ital-3346.txt