danijelzi - 12:28 pm on Jun 6, 2012 (gmt 0)
If you are using Wordpress and link thumbnails to attachment pages (.html or such) instead of directly .jpg, WP will create a page like yoursite.com/blue-widget.html/blue-widget-front-view, with the image and maybe its caption as the only content. The problem here is that yoursite.com/blue-widget.html/blue-widget-front-view often outranks yoursite.com/blue-widget.html on Google and users land on a page with only image on it, instead on the full article and this can cause high bounce rates. I don't know the reason why this is happening, but maybe the part of the problem is the url structure, where yoursite.com/blue-widget.html/blue-widget-front-view appears to be better optimized than just blue-widget.html. If you have a lot of attachment pages, this likely drains PR a lot and creates duplicate and thin content. I noticed this problem back in 2010, but maybe they started penalizing this with Panda in 2011.