SEOmoz revisits the subject of what kind of content people on the Internet link to. Using the number of individual linking root domains as opposed to total link counts, this post finds that content with images get more links than posts without images, confirming a widely held belief. Also, longer posts tend to get more links than shorter posts. However, there isn’t too much weight behind the idea that comments on posts correlate to more links. Also, there seems to be a slight correlation between the number of outbound links and the number of links received. It’s important to note that correlation doesn’t equal causation. (SEOmoz)