It seems like two or three times a year, I have a period where sales are really off from prior years. I'm having one right now, where for the past two weeks my sales are 30% of what they were a year ago.
I can't seem to find a reason, other than the Panda update. Still, with the advertising I've been doing since my site was hit by Panda, my sales have been close to or sometimes even exceeded last year.
I know this happens to just about everyone. Where do you look for reasons for sales slowdown's?