As the name suggests, ShareFile, which was acquired last year by Citrix, is more of an online file-sharing service with a storage component. It will best suit users with sharing and syncing at the top of their priority list; those looking for a pure backup and storage platform will probably go elsewhere. Where ShareFile tries to set itself apart is with a laser focus on business users--unlike some of the larger players, it doesn't cater to consumers. Rather, it targets professional users that want an alternative to FTP or less-secure online collaboration tools. The emphasis on top-grade security and encryption, syncing, and other business-oriented features comes with a price: corporate plans start at around $100 a month for 20 GB and 20 user accounts. ShareFile offers custom pricing for companies with more than 100 employees.