As internet become more and more popular worldwide, people obtain information faster and more convenient than ever. However, when things come to a point where they have to make a decision, such as a large cross-broader trading, they will choose to participate in an industrial show where they have opportunities to have face-to-face conversation with others. Take the lighting industry for example, every year there are thousands of buyers stream into leading lighting fairs seeking for right products and suppliers. But another challenge they have met is that with such an explosive informa...