In the recent years organization have faced with new challenges throughout the world. Together with   globalization new markets have been opened and the   existing markets have grown rapidly. Hence the need for knowledge has arisen very much. Organizations began to need more information about the markets about their   competitor and also about other effective factors which would influence their functioning throughout the world market. The need for knowledge is not solely tied to this change but organizations in order to become more competitive need to make developments and learn the needs and expectations of their customers. So this need became the second motive in the organizational search of knowledge. From this need of the organizations for more knowledge and information the Knowledge Management has emerged. Nowadays many organizations regard knowledge and information as valuable assets of their    organizations and apply programs within their   organizations to organize the flow of knowledge. But  organizations do not possess all the necessary tools to continue such programs and they get help from outer sources. These sources are mainly the firms that
deal with developing the tools and technology necessary to search identify gather categories and deliver knowledge.