Is there a place where we can compare* the many new arising cloud hosting providers? From reading into each of them, they seem very different and range from just hosting applications (google) to a semi-full enterprise web serving framework (rackspace). Comparing "by hand" takes a lot of time. All have limitations and different prizing, but which are those and how do they compare?

I'm looking for an unbiased comparison site, rather then a discussion on "which is the best".

_{* I don't mean a hosting provider comparison site, of which there are many. The properties of cloud hosting providers are remarkably different and don't compare well on classical hosting provider comparison charts.}