http://www.politicalcompass.org/
I'm near Ghandi!
BTW, this reminds me of an idea I had once for a useful website. You fill out a long form on your beliefs and desires and such -- political, social, personal. Then, at election time, the system generates recommendations on candidates and laws for you so you don't have to wade through the documentation and contradictory campaigns.
Of course, programming it to take all this in would be tough if not impossible, especiallly keeping it unbiased. You'd need a team of starry-eyed poly-sci majors to figure out all the permutations of the bills and candidates and how they relate. And really good programmers (not me, I'm just the idea guy). And still you'd have a system ripe for abuse, and one not likely to make any money.
But does the internet need another porn site? Or another blog?