Originally Posted by cassidym
Recommend you visit Literature Map http://www.literature-map.com/
. You enter an author's name and hit Enter. The page closes and a new one opens with your author's name in the center with other author's names arrayed around around it. The physically closer to your author another author is, the more like your author he/she is.
I believe it is more that people who like this author have also liked this one and not similarity of author itself. I do find it useful for finding other paths to reading though and it is a valuable link.