For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Google Drive - Access and sync your files anywhere
Barkr - Organise bookmarks into collections and then find your favourite websites quickly and easily, using an intuitive search rather than wading through masses of folders.
Mega - Secure File Storage and collaboration
Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.