CloudTop - CloudTop is an online cloud web desktop.
Dropbox - Online Sync and File Sharing
eyeOS - eyeOS is a web desktop following the cloud computing concept that seeks to enable collaboration and communication among users.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Oneye - Oneye is a takeover of the legacy series one from the eyeos project.
Google Drive - Access and sync your files anywhere