Originally Posted by Dennis Rodman

Well at a quick glance, it appears that most of your sales appeared when +200 uniques were sent, and the zero sales days were when they were in the hundreds.

I guess the next question would be, where is the traffic coming from? Was it all text links, banner links on surfed pages? Possible a combination of SE pages and click links?

The reason I ask is because within the last 2-3 weeks Google did some major updating of their results, and it's possible that the links you were getting your clicks from them were buried somewhere or deleted altogether... just a thought.