Check out the really neat, fun new tool, Literature Map. You type in the name of a favorite author and a "cloud" of related/similar authors appears. The closer the name is to the chosen author, the more likely you will enjoy them. You can then click on a new author and start following the trail.
Neat idea and after playing around a little bit, it definitely seems to be fairly accurate. Looks like I will have to poke around a bit and see who else I can find.
Thanks to Melissa on the UUHomeschooling email list for the link.