I'm sorry for the short diary, but I think this is important.
There's a whole lot of jumping to conclusions going on in another diary. Rather than hijack the thread, I'm putting up a diary to present my evidence here.
Have a look at this image, from the forged Obama certificate:
And now look at this one, from the alleged source of the forgery:
Observe where the vertical folds cross the letters: It's more or less the same in the first fold on the left. But the second fold crosses squarely on the "I" in the first case, and between the "E" and the "G" on the second photo. And the third one, on the right, is simply way off.
It shouldn't be surprising that the folds might have been made in almost the same places -- there are only so many ways to fold a sheet of paper, folks! (Origami artists need not speak up here :-) But they are simply not. the. same.
And that's before we look at differences such as perspective, lighting, and so on...
I can believe that the forged certificate used another certificate from the same district (and so the same registrar, etc.)
But to say they're the same? That's a leap.
Let's not be like the birthers. Let's not leap to conclusions when there's no safety net below.