Websites are not an archive, and believing that, or maybe even trusting in it, can go horribly wrong:
If you really want to rely on the WWW, then find at least two, but preferably more, web storage providers and store your data there in encrypted form. If they are each located on a different continent, your data should be reasonably secure. And you should not store your data spread across these services, but store an identical copy of your valuable data with each service. If these services are then accessible via WebDAV or FTP, you can manage and use them at home with a decent file manager, i.e. NOT Microsoft’s Exploder, as if they were storage on your PC.
Michelist