Check out this article. It is about a college prep high school in New York. They take an interesting perspective on college preparation.
The article is entitled: At Technology High School, Goal Isn’t to Finish in 4 Years
http://www.nytimes.com/2012/10/22/nyregion/pathways-in-technology-early-college-high-school-takes-a-new-approach-to-vocational-education.html?ref=education&_r=0