Hi all, the following article I have linked below looks at a survey of higher education institutions and their application of portfolios.
The Association for Authentic, Experiential and Evidence-Based Learning (AAEEBL.org) conducted a survey of its 100 institutional members in five countries this year and found 61 distinct uses of portfolios among the 20 institutions that responded.
Article: http://campustechnology.com/articles/2010/12/01/review-of-portfolios-in-higher-education.aspx