Simon Grant is one of the key UK writers and developers in the area of eportfolios. He particularly interested in how eportfolios support the development of personal values. His web page is full of interesting stuff http://www.simongrant.org/home.html
"An e-portfolio is a purposeful aggregation of digital items - ideas, evidence, reflections, feedback etc, which 'presents' a selected audience with evidence of a person's learning and/or ability." Sutherland and Powell (2007)
This blog will track my experiences using eportfolios in an educational setting