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
Neveo - Neveo app features the print and delivery option of a fully customizable photo album to anywhere around the globe so you can share your memories with your family members.
Google Drive - Access and sync your files anywhere
Audio card by MyPostcard - Mail a 60 second audio recording in a personalized card
Mega - Secure File Storage and collaboration
journi - Travel Blogging Rediscovered