I've seen this before, and I'm still not impressed. It's not as good as Google, certainly.
When I search for my name, I get 2 out of 20 that are actually me. Both of those come from companies I started, not any that hired me. Their sources are rather limited, too. It looks like they actually track very little, based on the sources of that information. They need some Google Web Services kung-fu.
Despite my O'Reilly weblog profile and my personal web page, with both say I work for Stonehenge, it doesn't show up.
Randal's results are a little better, but still don't mention Stonehenge.
Not even a company search found any "Stonehenge Consulting" employees.
Apparently they are only looking at news-type content, and doing very simple lexical analysis with very simple patterns.
I smell a business plan and a lot of know-nothing coders.