A electronic portfolio is much like an extensive résumé. It is a selected collection of exploits, dressed to impress. However, because the portfolio is designed in the same vein as a website, it allows for interfacing which is beyond a paper résumé. Considering that it is similar to a website, in making a "consistent" and "subtle" portfolio, it might be advisable to remember some web design tips. While the content of the portfolio can be impeccable, neglecting the aesthetic craft of the web portfolio is like having a messy, blinking résumé.
Like a résumé, electronic portfolios have an abundance of uses. It's perhaps beneficial to electronic literacy to learn how to proficiently compose an electronic portfolio. They could be ways of informing employers, professors and others about our work.
A model portfolio is not only designed to look good, but reads well. Each entry has an introduction which informs the viewer about the assignment within that part of the portfolio. This entry also relates it to other projects within the portfolio. I think this is important because it supplies the portfolio with continuity and meshes together other parts of the portfolio. It gives the entire system a sense of being a whole.
Lastly, a good online portfolio offers an honest self-assessment. It is just as important to present material to be assessed as well as to make one's own judgments about one's work. Don't sell something to the reviewer that you didn't really put great effort into, and at the same time, don't depreciate the value of something you've done well. Also, a good electronic portfolio is reflective. Show that some effort went in comparing your intentions and the finish product.