A file-sharing service. Virtual teams need a place to share files. A file-sharing service will allow employees to store, access and share files in a secure location. Dropbox is one major platform for file sharing, but there are plenty of other popular services available, such as Google Drive and OneDrive. If you have highly regulated IT guidelines, it may be worthwhile to invest in your own IT-approved system.
I doubt many companies like or prefer that employees work from home. We allow the policy in order to be able to attract employees who would otherwise go elsewhere. We are heavy users of Slack, Confluence and other collaboration tools that make working at home more productive, but they cannot replace the serendipitous interactions that occur while hanging out by the nitro-coffee keg. - Manuel Vellon, Level 11