Abstract: Collection development and library attendance changes in U.S. considered in light of growing use of electronic resources compared to resources on paper. Methods to increase usefulness of licensed databases, library online catalogs and web sites discussed. Metadata formats for description of electronic documents and collections, logical structures of electronic resources as well as standards for metadata harvesting and sharing briefly reviewed. Changes in library education and new responsibilities of librarians dealing with electronic resources considered. Preservation of electronic resources, their impact on students and libraries discussed.

Abstract: Annotating the information resources in the frame of XML platform is a topical problem. The formation of knowledge base on the basis of formal statements allows one to process semantically the contents of information resources distributed in the Internet with help of the reasoners. In this paper the approach to description of molecular spectroscopy information resources is described.