. . . "nefit to the user who transmits the guide code at step 122. [0077] As explained further below, the benefit could include but is not limited to cyber-cash, prizes, free call time, information, and any other item that could be beneficial to the user. [0078] In another embodiment of the present invention, as exemplified by FIG. 10, an advertisement method on a network comprises displaying a guide cod" . .