Search Engine Guide - Where Does the Responsibility of the SEO End and the Client's Begin?

I liked this article quite a bit, having had numerous clients who really didn't know what they were getting into in creating their online business. We work with a number of small businesses that go through major growing pains while we work on a project with them. One of our clients discovered just how much there was to having a viable business online, they had no idea what it took to make it work. Quite a learning process educating the client and a study in patience for us and the client.

Where Does the Responsibility of the SEO End and the Client's Begin?