At goldsmiths we have a tool called Mahara, but there are lots of other kinds of portfolio. In a nutshell it is a space for staff to keep resources that may or may not relate to work or study. The system is made of two distinct parts: a place to store content privately and the area where you can curate and collate this content to share with other people.
Advantages of using the portfolio:
always have access to your material as long as you have access to the internet
collect external content and add it to files that you have saved
share similar content in different ways to suit your purpose