Certainly, but nobody really uses the term for such services. Salesforce.com likes to call itself SaaS because it distinguishes itself from Siebel, Oracle, and other big enterprise software co's that sell similar services using the old product model.
But it doesn't really mean much outside of the enterprise space. The whole web is SaaS. =)
But it doesn't really mean much outside of the enterprise space. The whole web is SaaS. =)