If you keep up with fstoppers, it's likely you saw some unique portraits posted HERE using the Brenizer Method. This post explains that method a little more. If you want to hear Ryan Brenizer explain his own method, he posted his own video on his website. If you you're too lazy to watch the whole thing though, here's a summary with some examples.
Portrait Photographers Who Inspire: February 06, 2013 Photo by Ronen Goldman Hello Bag