Sand - 4:10 pm on Nov 16, 2012 (gmt 0)
My week has also been down fairly significantly as compared to the week before. This is likely my doing, as I changed 75% of all the title tags on the site last Friday. Yeah, it was a drastic move, but it needed to be done to reflect new content sections added to the pages. Yesterday was down ~35% week over week. There could also be some seasonality at play, as interest shifts towards shopping and away from the information I'm providing.
I hope that's the cause anyway, and not some stealth Panda refresh or something of the like. From my box, I don't see any significant ranking fluctuations, but who knows how closely what I see resembles what anyone else sees.