I created a PDF portfolio for my Art Metal (TAS) students last year, using InDesign then converting to interactive PDF. The students loved using the folio and having all their worksheets, tests and information sheets in one place. The biggest advantage I found was that it enabled me to make the meanings for subject specific words available on screen and in context, by way of fly out boxes. This meant that the students didn’t have to ask for an explanation and risk appearing silly. The use of subject specific vocabulary in the classroom rocketed up. I could give feedback to the students by adding sticky notes to their files, and at the end of the semester all the students had a good looking folio to submit for assessment. Anoher of the things that the students really liked was that they didn't have to deal with B&W photocopies.