We are actually moving away from advertising and it's because we find it difficult to track a return on investment (the reason for us using codes there).
Right now, we are actually going to be focusing increasingly on the forum (we had daily offers here but nobody voted so canned that idea) and of course the newsletter for discounts. At the end of the day we don't want to be giving people the hard sell with countless offers. The newsletter is the place for that. Our view is to add value to what we give to you guys and in doing so hope that despite the fact it's an unpopular way to market the business (and expensive) that it helps us in offering people something distinctive.