You have to see this to believe it. Jeremy Hooper at Good as You has discovered that the National Organization for Marriage (which campaigns exclusively against equal marriage rights) has used photographs of Obama rallies to make attendance at their own rallies appear larger. He provides two blatant examples. [Here and here.]
Given the tactics employed by this group and others like it in the past, I do not find this all that unbelievable. Still, though, it is difficult to understand how they would think they could away with something this obvious. I mean, look closely at the first photo. You can even make out candidate Obama standing at the podium.
If these people had any credibility whatsoever in the past (which I doubt they did), they most certainly do not now.