Last year Gerhard Bisovsky & I presented some findings about competencies that trainers in adult education needs to work successful with e-portfolios at the ICL conference. A slightly revised version is now published in the iJET journal. After a registration, all articles are free available.
Bisovsky, Gerhard & Schaffert, Sandra (2009). Learning and Teaching with E-Portfolios: Experiences in and Challenges for Adult Education. In: International Journal of Emerging Technologies in Learning (iJET), Volume 4, Issue 1.