Drop Box offered extra space if you got other people to sign-on. I did that with about 4 or 5 people. The issue, juct recently, was that the extra space was only temporary! If I wanted to keep it, I needed to pay for an upgrade. Well the upgrade is too much money for me! So, I made a copy of all my images and then did nothing. They went back to my basic limit and I've not added any new pictures, but can still access old ones.

So.... Drop Box is OK, as far as "free hosting" goes.

Jim