Pop Quiz: How many amazing resources come with your ISTE membership? Almost more than you can count!
I really love the idea of using Book Creator for student portfolios. You would need a subscription to Book Creator, but there is so much you can do in terms of adding text, video, audio, images (as well as creating your own images). Students can collaborate (or not) and add to their portfolio throughout the year, or many years. I think the possibilities are endless! A link to portfolios can be shared with others (families) to view.
You can use the free version of Book Creator but there is a limit to the number of books (40?) Fortunately, afterwards you can either delete the books or combine into one book and still have plenty to use. Only a few of the features are paid (maps, emojis...) but anyone can search for images, write text, audio or video record, backgrounds, etc... Super easy to use. Lots of examples on their site and I have personally used with 1st -3rd graders. Very intuitive program and students love. Careful to not let students add last name if sharing to the web for publishing due to privacy. Links can be sent to parents or they can be printed.