My sales are up about 40% over last month, and way up over last December. A majority of my sales come from Clickbank and EPN.
I'd have to say the answer really depends on which niche you're in. I'd imagine the recession would have some effect on certain niches but not so much on some others.
Well any niche is really a seasonal niche anyways. People are willing to spend more money online than in stores because of the better deals online.