However, lack of computer and IT skills, time consuming, limited access to computer terminal and too much information retrieval, using electronic resources, often detracts from doing work (Ojo & Akande, 2005).These challenges among users may deter them from using electronic information sources. To this Omekwu (2001) stated that the success of online searching depends on the ability of the user or the information scientist to perform the search in the best possible way.