Vision of a digitized world, every library has rich stores of primary, secondary and tertiary sources of information including Internet resources, online databases, manuscripts, photographs and sound recordings. New technologies are also changing the services that libraries provide like virtual reference, user instruction, document delivery, consortia e-resources, self-checkin/checkout etc. As society becomes increasingly wired and lack patience in searching the required information, library use skills are essential to access information efficiently and effectively and thereby use information accurately and creatively. This book would be of immense value and useful for library science professionals including, policy makers and IT professionals to explore the various information sources including Internet technology, e-resources and databases in meeting the timely information needs of the society. This book is also of high value to the agricultural and veterinary scientists to meet the syllabus of Library and Information services recommended by ICAR, New Delhi to equip the library users with skills to identify, collect, formulate search and use various information sources including Internet, OPAC, CD-ROM and online databases.