I found a really useful article about which pins on Pinterest get repinned the most. I found it a bit surprising on some counts and obvious in other ways, like a very saturated image gets more attention that a dull one. Things I rarely consider, like the aspect ratio of the image having an affect, were mentioned too.
Pinterest has been very helpful to me from an art sales standpoint but that is not the sole reason I use it. Its so yesterday, but I use it mostly to save and categorize images and ideas. The article is a good read but it made me wonder, why do you use Pinterest? Has it helped you business or blog?