Just read MacIntyre's great post about the value of blogs out there. We are of course talking about professional sites that are not really on par with the likes of the majority of blogs out there though. You're talking about people who make a living out of writing on their blogs (or getting others to write for them). MacIntyre created a previous top 25 list of blogs and their valuation in 2008, he's back again with another list for 2009 of the top 25 blogs.
As we are nearly all faced with the reduction in spending on advertising, one would expect sites like the ones listed in 2008 to have dropped in their 'value'. I mean Wall Street are having hard times so it seems normal that this would have a ricochet effect on the rest of us. But it seems that it isn't necessarily the case for all, and on the contrary some of the sites listed have gained value... It's like christmas come early 😉