When I was applying for a US passport in the mid-80s I had to go to the county seat where I was born, the clerk would go in back and come out with a photocopy of my "certificate of live birth" (IIRC I was not allowed to see the original) then a notary would stamp it to certify that it was an actual copy. This certificate the usual information (birthdate/sex/weight/etc). It also had my parents names and places of birth and age, the hospital where I was born (which doesn't exist anymore), and the doctor's signature.
When I re-applied for one two years ago (my old one had expired and I couldn't find it) I received a printout that certified one was there and it was stamped. None of the additional information was present and I got a US passport.
If the "birther" movement wants to convince me that President Obama was not born in the US they have to porduce more evidence then they have. Provide documentation that contradicts that his mother was in Hawaii at the time (flight records, boat tickets, ETC). The same holds for those that doubt he went to the schools that have records of him being there. He had to be someplace if he wasn't at Occidental. Produce a lease on an appartment or employment records. The opposition has already produced all that is needed to prove he was born in Hawaii. Rather just sitting around saying that the COLB isn't good enough and if this issue is as important as you believe it is and you love your country, doing some work would seem a reasonable request.