I just found you through a comment that you made over at think:lab.

In your comment above you say: "In many ways, I try to put myself out of business with each project. My aim is to make my clients self-sufficient."

This is how everyone should approach what they do. Anyone who is confident in their ability to continually learn and adapt does not feel the need to preserve their job. In fact they look forward to new challenges and opportunities. How can educators prepare students for life-long learning and adaptation if they are unwilling to do it themselves? Teacher self preservation is part of the reason schools are so behind the rest of society.

You might find this 2001 Daniel Pink essay interesting:
http://www.reason.com/news/show/28174.html

He talks about "the homeschooling revolution", "free agent teaching" and "the end of high school" after summarizing the Taylorist foundation that our school system is built upon.