Questionable uploading of powerpoint

Well, that was interesting, uploading large files without publicly sharing, nearly impossible. File size is limited unless you upgrade in weebly (only 5mb) that's nothing when I have a lot to say. Am wondering how we go sharing images of people's artwork, many do not like even when it is referenced. For this reason I chose not to upload the presentation I am currently using in my art course. Whilst it will be shown to peers, it is not for publication online.