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
Photostory - Photostory lets you take a picture of yourself every day, and compile them into a video, showing...
Google Drive - Access and sync your files anywhere
AquaSoft SlideShow - Create impressive photo shows for DVD-player and PC in a heartbeat.
Mega - Secure File Storage and collaboration
PicPlayPost - PicPlayPost is a simple and easy way to create captivating stories