The paper introduces vertical portals and their information service modes,analyz es the inevitability of their emergence and development,and finally gives some suggestions as to how to do a good job in providing infor...The paper introduces vertical portals and their information service modes,analyz es the inevitability of their emergence and development,and finally gives some suggestions as to how to do a good job in providing information service through v ertical portals.展开更多
文摘The paper introduces vertical portals and their information service modes,analyz es the inevitability of their emergence and development,and finally gives some suggestions as to how to do a good job in providing information service through v ertical portals.
