Link-Building Psychology 101
For example, Fishkin tells us Twitter users like to link to things that will make their visitors appreciate them. This way they come back for more. So, it becomes important to "play to the linker's egos" and selfishness. You'll often have more success than if you appeal to their sense of altruism, he writes. For example, a site catering to real estate professionals might rank the top real estate bloggers or top real estate agents.