The NY Times' City Room blog has a short profile of photographer Nikola Tamindzic.
He uses long exposures, then shakes the camera while the shutter is still open, causing colors to blur and lights to streak. "I'm not recording what is really happening, but it's something like what the brain is seeing late at night, especially if maybe you're drunk or very excited," he said. "I like that hour between 3 and 4 in the morning when desperation sets in, when you see all the anticipation of going out starting to fade. The masks drop and everybody realizes the night is not going to be everything they were hoping for."
You may have seen Tamindzic's photos on Gawker or on his own site, Home of the Vain. Here's the photo with Huffington, Murdoch, et al. An archive of his photography is available at Ambrel.