toxicTom: If you want to upload files from several local locations. But seriously--- HDD space is really cheap nowadays. Depending on what you want to upload, it shouldn't be a problem to have file doubles on your HDD - one sorted in and one in the Dropbox Folder.
Please read this carefully: It MUST be 100% FREE and I can NOT have it synchronized with my hard drive. I've tried to make this as clear as possible.
As for everything/everyone else:
I don't trust Google at all and I deplore their handling of private information.
Having a private link isn't good enough; it needs to be login accounts.
I can't rely on Python or anything like that being installed because many of the people who will be using this are not tech savvy and I don't want to expect them to install anything.
TheNerdyPlane: are you implying there's a thing called "everyone"?
Randalator: if the Dropbox synchronization is optional, that might be a good one then!
by the way, I've found a page on Wikipedia that might help me, but I haven't had a chance to look at it yet:
https://en.wikipedia.org/wiki/Comparison_of_file_hosting_services So maybe I'll just read about them and compare. But if anyone has any more suggestions that conform to the restrictions I've explained (I don't think I'm being
too picky, I just need it to work in a certain way), I'd be happy to hear them.
But in any case, thanks for the suggestions!