Also, I think "freerepublic.com" at the bottom of our signs would be helpful.
That way, whatever photo makes it to print will be an ad in itself.
ALSO-- although I haven't done it yet, a good inexpensive thing would be for individuals to have business cards printed (at their/my own expense even), with the FR logo and the URL, and maybe "Conservative News Forum" or whatever, to be handed out in mass at FReeper events. Something very simple and basic.
Of course, if all this needs to be "official" and approved by Jim himself, so be it. But I think it would be a good promotion, anyway.