SV was asking about this -- this is a political survey I did in 2005 to figure out if I was imagining leftist political bias on sites like Orkut and Multiply. Many people insisted it didn't exist.
The original one (sadly I don't have the info on it anymore) was a phone survey by Pew Research I believe. The Multiply numbers came from a survey I posted on here, very informal of course.
I think this was June of 2005. And Obama had just begun his first term as a Senator. Nobody would have considered him a suitable candidate for president. Of course, many of us still don't. ;)