Abstract: With the number of dynamic links in the text as the criteria， the definition of publishing can be divided into five categories, which are kinds of “ mono-link”, “ bi-link”, “ tri-link”, “ multi-link” and others. By studying the five categories, we can draw the following three conclusions. First, the variation from “ mono-link” to “ multi-link” reflects the deep understand of the essence of the publishing. Second, to great extent, it has been agreed on that the duplication belongs to the core link, for the concept publishing is not instantly static but the process dynamic. Third, neither the carrier nor payment can act as the key factor and criteria to weigh and evaluate the publishing behavior.