Is an apartment the best choice for everyone? Or is a single-family house the best fit?  Many debates have ensued over the differences between these two very different housing options. Similar conversations occur around the differences between public cloud solutions (like Microsoft Dynamics CRM Online & SalesForce.com) and private cloud (dedicated virtual instances in the cloud). A good way to think about the public cloud is like an apartment building - multiple residences all within one real-estate footprint. A private