Some things to consider:
Create your portfolio to be both a culmination of your education AND an employment tool. Some employers love the ability to see culminating work on eFolio sites such as this.
Continue to update and use throughout your career. This can be a tool to be used anytime opportunity knocks.
Whenever you speak at a conference or make a presentation, have someone make a digital recording of it. You can host that video on YouTube or Flickr (or others), and link to it on your eFolio.
Create a LinkedIN account and profile and cross-promote yourself. Create a LinkedIN link to your profile on your eFolio, and on LinkedIN, be sure to add the link to your eFolio in the Portfolio link section.
Keep thinkin' about linkin'. Make your eFolio is informative and convenient. If you mention teaching somewhere, highlight the name of the school and link to the home site. If you mention your spouse's name, and he/she has a LinkedIN profile, blog, or portfolio, you could highlight and link to it. If you can link to your college, your association, your colleagues, or anything that may be of interest to a viewer, find a way to do it.