Looking at their Analytics screenshot for that traffic, I see that "new visits" was just 5.42%, compared to a site average of 43.58%.<p>Given how unspecific the search term is, I can only assume that's because 94.58% of that traffic wasn't actually organic traffic, but was SEOmoz staff + people they talked to clicking on it.
I've noticed the same thing with reedit and my site. I've had a blog post on evolution rank in google for evolution related searches because it got to the top of the atheism subreddit. The organic traffic trailed off pretty quickly though.
I wonder what Google will do in the future to curb this from happening as they seem to crack down on everything and anything they think inflates ratings..
I brought this up with the founder of SEOMoz during the follow-up to an interview last night when I noticed one of my sites doing exactly the same thing -- <a href="http://bit.ly/f5iFvV" rel="nofollow">http://bit.ly/f5iFvV</a> -- and it's really got me perplexed.<p>What's happening, I think, is that different social sources are providing Google Juice with different decay rates. Which sources have which rates? Your guess is as good as anybody else's. Ugh.<p>I wonder how complicated the entire business of figuring out how to tell people about your startup or your web article is going to get? The trajectory isn't looking too good.