The Huffpo has a staff of 203 (among those are 97 full-time editorial staffers), and they’re currently at 26 million monthly uniques (according to their numbers). That’s 128,000 uniques per employee.
The Daily Beast has 65 full-time employees (positively tiny in comparison), and, in November, 6 million uniques, as per Omniture. (comScore reports it as 3.7 million.) The Beast also doesn’t have “free bloggers,” and yet (using their numbers, of course), it still comes up with a pretty good 92,307 uniques per employee.