Technology Summary. There are several online file storage services that offer secure online data file sharing with features such as folder synchronization for backups and workgroup collaboration. The logo pictured here is for DropBox.com. Top Three. The top four services, based on best website design, value, and ease of use, are listed here. Apple MobileMe iDisk –… Continue reading Secure Online Data Storage File Sharing and Folder Synchronization Backup System for Collaboration