In this era of information revolution, readers demand information of varied and diverse levels. People in different situations require information on a subject in different forms and different depths of explanations. The same persons may seek information in different ways and forms on different occasions. Individuals seeking information for the present use feel that certain information might be of some use in the future. Hence, to quench their need or demand for information, individuals may engage in information seeking. So the term information search may be taken to represent information behavior towards satisfaction of needs.