Time magazine ran an article on Friday on humanure (in case the topic is new to you, that's the composting of human waste). I think that's awesome.
Humanure: Goodbye, Toilets. Hello, Extreme Composting.
The best source for information on humanure is Joseph Jenkins book, The Humanure Handbook, which he has been making available for free on the Internet for years. You'll find it an amazing resource (unless you're pathologically squeamish).
As I've mentioned before, I intend to use a composting toilet when I eventually build my cabin. My only issue with humanure is that humanure is only as healthy as the people who produce it. So, if people are eating the standard American diet full of chemicals and preservatives and devoid of minerals, taking their 11.2 prescription drugs per year, with their mouths full of mercury amalgam fillings and their bodies shot full of mercury, aluminum, and God knows what other toxic metals from such things as unnecessary and dangerous vaccines--well, they're going to produce some pretty crappy crap, if you don't mind me saying so.
Before people start composting their wastes, it would behoove them to attend to their own health first. In order to create organic poop you have to create organic humans. Anything short of organic compost isn't worth doing for the earth. Composting human wastes is a deep, deep commitment in my opinion, and one that shouldn't be undertaken unless you've put your own internal house in order first.
I'm very careful about where I source the cow and horse manure for my garden. I would want to be even more certain about the provenance of any human manures.