dude23124 - 8:11 pm on Apr 11, 2011 (gmt 0)
I got semi-hit on April 6 then returned to normal levels on Sunday. I got hit again today from google.com. The site that I was swapped with, on a major keyword term, has 1 (one) total backlink according to yahoo site explorer. My guess is bounce rate is playing a bigger factor. I am also getting results on a major keyword term like 4 for the first vistor and then 13 for the second vistor same geographical location a minute later.