The use of Digital library has grown considerably past two decades. Using new tech-nology effectively depends on acceptance for that technology, which in turn would be affected by users’ perception of that technology’s usefulness and ease of use. Research on "usable" digital library shows that potential users of digital libraries may not use it, in spite of the system availability and the millions of dollars that have been spent. There is a need to identify external factors which has an affect users’ intention of using this system.