I do! I do! Lifehacker posted this link to Beer Viz, a site that lets you find beers similar to the ones you like in color, taste, and aroma (or all of the above). With pretty graphics!
The downside is you have to choose between "light, medium, and dark" at the very beginning, which seems sort of arbitrary, but I guess they couldn't fit ALL the beer families at one table.
I think (hope?) this is still a work in progress, so hopefully they will add more varieties soon!
Moral of the story: I have not tried nearly enough beers. I should get on that.