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.
Media.net - Yahoo! Bing Network Contextual Ads powered by Media. net gives you instantaneous access to one of the world's largest marketplaces for advertisers. People also askWhat is Media Net?What is Medianet Cisco?
Dropbox - Online Sync and File Sharing
Infolinks - Discover what Infolinks smart ads can do for you
Google Drive - Access and sync your files anywhere
Epom - An ad serving solution for publishers, advertisers, ad and affiliate networks
Mega - Secure File Storage and collaboration