Theatre Students' Portfolios
Assembling and Presenting a Professional Portfolio
Designing and Using Student Portfolios
Student Portfolios on the Web Ezine
Student Portfolios: Administrative Uses
Student Portfolio System News
Portfolios.com
Digital Portfolios
Student Portfolios and Projects
Employment Portfolios
Portfolio Sampler
Web Portfolio
Portfolio.ca
WebPage Portfolio- a sample  Here's a presentation on this topic.