I had a phone interview while they were able to see me code. They asked me a coding question on stacks on balancing parentheses. I was emailed several questions after which I was setup with an engineer from Facebook to interview with. There were supposed to be 2 interviews, you would only get the second one if you did well on the first.
Sigiloso
It was pretty straightforward, I started off by talking about how I am going to solve the problem then coded it.