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As of 28-Jan, referral traffic from Google images (/imgres) to my domain has pretty much vaporized. Visits are down 85%. It's actually not a disaster because most of those visits were from poorly optimized alt tags that were resulting in low quality visits. The interesting thing is that visit duration is up 80% during the same period. So I'm asking this question out of curiosity more than anything. Is this likely an algorithm tweak? I can't think of any major changes on my end. There's only one other data point to mention but I don't see how they'd be connected. I did two PRWEB releases on 29-Jan and 30-Jan that resulted in a few hundred new no-follow links back to my site. 22b7k2.png

One strategy I was considering for a new site was developing a WordPress plugin that would have the side-effect of generating lots of back links. Given Google's recent over optimization update, this sounds like it could be a really bad idea. The nature of the plugin would be such that it would probably be used on very new blogs with low quality.