That really surprised me. I've followed Stack Overflow from before the site hit beta. At the time, Joel and Jeff put out a podcast every week talking about so

That really surprised me. I've followed Stack Overflow from before the site hit beta. At the time, Joel and Jeff put out a podcast every week talking about software development and the new "project" they were working on that ended up being Stack Overflow. It still feels like they had just made their first few hires. I'm completely blown away they have 300 employees now. The last I had seen they had what looked like half a dozen closed door offices for their developers. Does Stack Overflow also encompass Stack Exchange or is that a separate entity?