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.
SmartSHOW 3D - SmartSHOW 3D is pro-level slideshow software with a powerful 3D animation engine.
Dropbox - Online Sync and File Sharing
Photostage - Quickly and easily combine photos and videos with a narration or soundtrack using PhotoStage slideshow software. Free slideshow maker download for Mac & PC.
Google Drive - Access and sync your files anywhere
ProShow - ProShow is a dedicated tool for creating slide shows from your photos, video and music.
Mega - Secure File Storage and collaboration