Appirio, a cloud integrator that helps companies use cloud services has published a map of the marketplace.
It attempts to distinguish between services that are true cloud offerings versus those that are hosted (single tenant / multi-tenant) versus private cloud offerings.
We didn’t get a chance to look at in detail yet, but we did notice that Salesforce.com is listed under platforms, but not applications. The last we checked their CRM in the cloud app was way more popular than Force.com, their development platform.
Still, it’s a great straw man that everyone should check out and give feedback on. Send suggestion to firstname.lastname@example.org.