At this point you need to decide what format you portfolio is presented in. In the past, everything was on paper, but technology has introduced the option of presenting your portfolio on a PDF, JPEGs or through an online medium. Being able to email a link to your portfolio through to potential employers is obviously extremely convenient.
I would argue that the process and final product of a beautifully printed out paper portfolio far outweighs the option of viewing photos on screen. For more on presenting an online portfolio, check out our Quick Tip article on the subject