Problems encountered under the (TDF) transdorder data flow and the current insights of overseas information services which have considerable influences to the domenstic information market are discussed. The various organizations which provide the oversears database services and do bridge role to the domestic users are investigated. The current Internet connectivities by non-profit members as well as commercial sectors for the overseras information services are also discussed. Attention is given to that the overseas information services must be understood and proceeded in the perspective of TDF and of the considerable problems implicated, and that the researchers having interests about information services must have an idea to the information sovereignty.