outland88 - 5:23 am on Sep 23, 2010 (gmt 0)
That's exactly how I feel they throttle!
The test is to methodically check position for a small handful of keyword phrases at regular intervals
Basically, yes. I've found it best to check the deviations in sales and the positioning over months. Plus you have to rule out it isnít related to monthly pay periods, holidays, stock market shifts, etc, etc with your particular business.