I just came across this great post from back in April by Dean over at Heal Your Church Web Site about Software as a Service for Church Websites .
It is worth a read and your consideration if you are involved with any Christian Website for an organization. Here is a small snippet to entice you over to read the post:
...SaaS helps keep this highly mobile, suburbanly sprawled congregation together by facilitating both paid and lay staff in terms of communications, sharing materials and schedule management. In other words, the problems solved by FBCF’s use of the CCM go well past that of simple website content ‘manglement.’