http://blogs.technet.com/matt_deacon/archive/2007/02/06/2-saas-licensing.aspxOne of the most defining characteristics of SaaS is probably that of licensing provided as a subscription-based model rather than the single up-front license fee sold for perpetual use as described by traditional software “products”. This subscriptionen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/matt_deacon/archive/2007/02/06/2-saas-licensing.aspx#645544Sat, 17 Feb 2007 02:54:24 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:645544Matt Deacon's digestive blog<p>SaaS is a continually evolving mix of existing and emerging technologies and business models and as I</p>