rtising method; and FIGS. 6A and 6B are a flow diagram illustrating a method for co-promotional advertising using coupon sweepstakes objects; FIG. 7 is a flow diagram illustrating a method for co-promotional advertising using coupon sweepstakes objects; FIG. 8 is a flow diagram illustrating a method for providing a coupon sweepstakes object; and FIG. 9 is a block diagram illustrating an exemplary