Through my subcription to the tag 'sakai' I found a very nice article. It is called Is Open Source Right for You?. The article clearly identifies some important factors in considering open source, and Sakai for that matter: "So what makes an organization a good candidate for open source? And is open source mature enough yet to be considered a viable alternative to commercial learning management systems, particularly for use in corporate environments?
Here's a look at several factors any organization contemplating open source should put on its "must list" to consider."
The article make an important distinction between a course management system (CMS) and a Learning Management System (LMS). I always sort of tried not to think of this distinction, but it is indeed important to have a good understanding of the differences. For one: a LMS has clear administrative functions that a typical CMS doesn't have. An LMS is therefore mostly used in a corporate environment, in contrast to a CMS, that is typically used in Higher Ed (or education in general).