f you decide to use Pinterest as a resume or portfolio tool, you have two options: create a board or whole account to showcase your skills. If you create a board, it will be one URL and one stream with all of your resume/portfolio items. If you have enough items that pulling them into one stream could be too cluttered, you could create a dedicated Pinterest account with several boards to organize your items into. What your best option is will depend on your profession and experience level.
Now this will appeal to some of us as a use...
I've already done this myself. It's great as you can add a description and a link to each 'pin'. Good tips in this post.
I don't know how to use pininterst to promote education but I am learning.