Portfolio’s ad pages were down more than 60 percent in the first quarter of 2009. If you account for the magazine’s decreased frequency–it published two issues in the first free months of the year, down down from three last year–that works out to be a 40 percent drop. Here’s how its peers performed during the same period, via the Magazine Publishers of America:

McGraw-Hill’s (MHP) BusinessWeek: Down 39.8 percent

Time Warner’s (TWX) Fortune: Down 26.3 percent

Privately held Forbes: Down 15 percent

Bear in mind that the revenue numbers for each title are likely down much more dramatically. That’s because the two categories of advertisers that the business magazines have depended on to fill their pages–financial services and autos–have all received extra-vicious beatings from the economy since last summer. So the publishers are particularly vulnerable to rate card pressure. And I’m told that luxury and travel advertisers, which had stayed relatively strong through the end of 2008, fell off dramatically this year. So that can’t be good.

My contribution to the aforementioned bone-picking: Like everyone else who wrote about Portfolio yesterday, I mentioned that the magazine and Web site had reportedly been launched with a budget of $100 million or more. But let’s be clear–that’s $100 million (or more), to be spent over a five-year period.

Portfolio was around for two years, and was gestating for a year before that, and a bunch of the budget was likely spent up front. So Condé Nast likely did burn through a very large pile of cash–the New York Times’s David Carr reports that the magazine spent $30,000 last fall to “procure the services of a real elephant to menace a model at a photo shoot.” And I’d love to know what the total actually was (for the record, I asked, and no one will tell me). But it’s a stretch to think Condé Nast actually burned through nine figures on this one.

It’s no surprise, obviously, that financial advertising has slowed down in the first three quarters of 2008. The surprise is that it’s only been a 10 percent reduction (so far), according to Nielsen.

There are also some interesting breakdowns: Mortgage and loan companies spent 62 percent less (of course). But credit service companies increased their spend by 22 percent, and investment service companies boosted their spend by six percent.

Here’s Nielsen’s list of top 10 financial advertisers (click chart to enlarge): Note that Bank Of America (BAC), one of the comparative winners during the meltdown, has cut its spend by 30 percent so far this year–slightly more than teetering Citigroup’s (C) 26.5 percent cut. Previously left-for-dead ETrade (ETFC), meanwhile, bumped up its spend by 24.5 percent.

Want more unpleasantness? OK. Comes now yet another ad executive to tell you that next year will be very unpleasant for anyone looking to make a living off of advertising revenue.

U.S. advertising spending will drop 5-8 percent next year, says Steve Lanzano, chief operating officer of MPG North America, a unit of French advertising conglomerate Havas SA. Lanzano predicts that sports advertising, long considered one of the most impervious to downturns, will get roughed up as well:

Even television sports, which have become more popular with advertisers since audiences tend to watch the events live rather than recording them, will suffer from the broad pullback in marketing spending, said Lanzano.

Lanzano estimated 9 to 10 percent of spending on broadcast sports comes from financial services and automotive, both industries that have been in turmoil. ‘That’s a lot of money moving out,’ said Lanzano.

‘Because of the hits in the categories that support sports–whether it’s financial or automotive or retail–I think they might take a little more of a hit than they would in other recessionary periods,’ he said.”

OK. Let’s break the glumness up a bit, shall we? If you’re looking for a cheap laugh, head to the Hollywood Reporter’s take on the Nielsen numbers. Then feast your eyes on the unintentional, yet very successful contextual advertising placed to the right of the story (which is where I borrowed the image currently at the top of this story).